Tag: M.W=100-150

Recommanded Product: Benzyl Alcohol. I found the field of Chemistry; Engineering very interesting. Saw the article Photocatalytic selective oxidation of benzyl alcohol over ZnTi-LDH: The effect of surface OH groups published in 2020.0, Reprint Addresses Wu, L (corresponding author), Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China.. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol.

ZnTi-LDH nanosheets have been synthesized as photocatalysts for selective oxidation of benzyl alcohol (BA) to benzaldehyde (BAD) under visible light irradiation. Based on UV-vis DRS, in-situ FTIR and XPS results, it was revealed that BA would be efficiently chemisorbed and activated on ZnTi-LDH forming the surface coordination species, which contributed to harvesting visible light and induced the photocatalytic reaction. The ESR spectra suggested that oxygen vacancies would be produced in ZnTi-LDHs after the adsorption of BA molecules. More exposed surface OH groups would induce more oxygen vacancies, which would serve as the centers for capturing photoelectrons from the photoexcited surface coordination species and act as active sites for enhanced O-2 adsorption and activation, resulting outstanding photocatalytic activity. Finally, a possible mechanism was proposed to illustrate the photocatalytic process which mediated by surface coordination species formed by the interaction between ZnTi-LDH and BA.

About Benzyl Alcohol, If you have any questions, you can contact Zou, JH; Wang, ZT; Guo, W; Guo, BB; Yu, Y; Wu, L or concate me.. Recommanded Product: 100-51-6

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Authors Fischer, O; Hubert, A; Heinrich, MR in AMER CHEMICAL SOC published article about DEUTERIUM-EXCHANGE; REGIOSELECTIVE DEUTERATION; ANTIOXIDANT ACTIVITY; PEPTIDE-SYNTHESIS; H/D EXCHANGE; INHIBITION; MECHANISM; METHYL; DISSOCIATION; REACTIVITY in [Fischer, Oliver; Hubert, Anja; Heinrich, Markus R.] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Pharm, Pharmaceut Chem, D-91058 Erlangen, Germany in 2020, Cited 65. Name: m-Methoxyphenol. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

Taking advantage of the differentiating effect of the solvent methanol, deuterations of electron-rich aromatic systems can be carried out under mild acid catalysis and thus under far milder conditions than known so far. The exceptional functional group tolerance observed under the optimized conditions, which even includes highly acid-labile groups, results from a hitherto unexploited shifted selectivity in protonation, and enabled simple and straightforward access to complex deuterium-labeled compounds.

About m-Methoxyphenol, If you have any questions, you can contact Fischer, O; Hubert, A; Heinrich, MR or concate me.. Category: indole-building-block

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about ENANTIOSELECTIVE SYNTHESIS; ASYMMETRIC HECK; OXINDOLES; ARYLATION; POTENT, Saw an article supported by the ARIADME, part of the European FP7 ITN Community’s Seventh Framework Programme [607517]. Product Details of 100-51-6. Published in GEORG THIEME VERLAG KG in STUTTGART ,Authors: Adeyemi, A; Wetzel, A; Bergman, J; Branalt, J; Larhed, M. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

A method for highly regio- and stereoselective intramolecular Mizoroki-Heck 5- exo cyclization of aryl iodides to the corresponding spirooxindoles has been developed. Electron-rich and electron-deficient aryl iodide precursors were selectively ring-closed with high stereoselectivity and good yields. The double-bond position in the cyclopentene ring was controlled by careful choice of reaction conditions. These rare spiro compounds were further functionalized to rigidified unnatural amino acid derivatives by a subsequent gas-free Pd(0)-catalyzed alkoxycarbonylation, followed by selective O – and N -deprotections.

About Benzyl Alcohol, If you have any questions, you can contact Adeyemi, A; Wetzel, A; Bergman, J; Branalt, J; Larhed, M or concate me.. Safety of Benzyl Alcohol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Khoshyan, A; Pourtahmasb, M; Feizpour, F; Jafarpour, M; Rezaeifard, A in [Khoshyan, Ashkan; Pourtahmasb, Mehrdad; Feizpour, Fahimeh; Jafarpour, Maasoumeh; Rezaeifard, Abdolreza] Univ Birjand, Fac Sci, Dept Chem, Catalysis Res Lab, Birjand 97179414, Iran published Aerobic {Mo72V30} nanocluster-catalysed heterogeneous one-pot tandem synthesis of benzimidazoles in 2019, Cited 53. Recommanded Product: 100-51-6. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.

A novel heterogeneous one-pot protocol is developed for tandem aerobic synthesis of benzimidazoles through dehydrogenative coupling of primary benzylic alcohols and aromatic diamines co-catalysed by Keplerate-type {Mo72V30} polyoxometalate and N-hydroxyphthalimide (NHPI). The catalytic system also works well for the synthesis of benzimidazoles using benzaldehydes, as commonly used starting materials, in the absence of NHPI. The high activity of the solid nanocluster provides standard conditions avoiding current limitations of oxidation methods including high catalyst loadings. The spectral results and leaching experiments revealed that the nanocapsule preserved its structural integrity after being reused in consecutive runs.

Recommanded Product: 100-51-6. About Benzyl Alcohol, If you have any questions, you can contact Khoshyan, A; Pourtahmasb, M; Feizpour, F; Jafarpour, M; Rezaeifard, A or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2019 FLAVOUR FRAG J published article about RETENTION INDEXES; ESSENTIAL OIL; TOPOLOGICAL INDEXES; PREDICTION; IDENTIFICATION; FRUITS; L. in [Mladenovic, Marko Z.; Radulovic, Niko S.] Univ Nis, Fac Sci & Math, Dept Chem, Visegradska 33, Nish 18000, Serbia in 2019, Cited 30. The Name is (E)-2-Methylbut-2-enoic acid. Through research, I have a further understanding and discovery of 80-59-1. Application In Synthesis of (E)-2-Methylbut-2-enoic acid

A recent identification of eugenyl (allylmethoxyphenyl) esters as Anthemis segetalis Ten. (Asteraceae) essential oil constituents, accomplished by means of organic synthesis, motivated us to expand the existing synthetic library with an aim to examine the generality of structure-chromatographic property relationships within this series of volatiles. Herein, the design, synthesis, gas-chromatographic and spectral characterization of members of a library of 85 allylmethoxyphenyl esters (64 are completely new) were described. Analysis of experimentally obtained RI data showed that esters of the same acid and different allylmethoxyphenols always elute in the same order from an apolar gas chromatography (DB-5MS) column: 2-allyl-6-methoxyphenyl RI values, several quantitative structure-property relationship models were built up that correlated several easily available parameters (e.g. Wiener [WI], Balaban [BI], and molecular topological [MTI] indices) of the mentioned esters and their RI data. The generated various quantitative structure-property relationships models (equations that predict RIs of esters of different regioisomers of allylmethoxyphenols with the same acids and the ones that predict RIs of esters of different acids with the same allylmethoxyphenols) were tested on data of previously known related esters. RI data of esters of allylmethoxyphenol regioisomers could be successfully predicted based on 1D topological indices, such as the Balaban, Wiener, and molecular topological indices. Together with RI and MS data accumulated in this work, these models represent a new and simple tool for the identification of allylmethoxyphenyl esters that might potentially represent new or rare natural products.

Application In Synthesis of (E)-2-Methylbut-2-enoic acid. About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Mladenovic, MZ; Radulovic, NS or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Authors Hassanzadeh, F; Shirini, F; Mamaghani, M; Daneshvar, N in BENTHAM SCIENCE PUBL LTD published article about in [Hassanzadeh, Fariba; Shirini, Farhad; Mamaghani, Manouchehr; Daneshvar, Nader] Univ Guilan, Coll Sci, Dept Chem, Univ Campus 2, Rasht 4133519141, Iran in 2021.0, Cited 51.0. HPLC of Formula: C8H8O2. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

Aim and Objective: In this work, we tried to introduce a non-toxic and stable organic compound named succinimide as a green and efficient organo-catalyst for the promotion of the synthesis of arylidene malononitrile and tetrahydrobenzo[b]pyran derivatives. Using this method led to a clean procedure to achieve these types of bioactive compounds without a specific purification step. The rate and yield of the reactions were excellent, and also succinimide showed acceptable reusability as the catalyst. Materials and Methods: In a 25 mL round-bottom flask, [A: a mixture of aromatic aldehyde (1 mmol), malononitrile (1.1 mmol) and B: a mixture of aromatic aldehyde (1.0 mmol), malononitrile (1.1 mmol)] and succinimide (0.2 mmol) in H2O/EtOH [5 mL (1:1)] was stirred at 80 degrees C for an appropriate time. After completion of the reaction, which was monitored by TLC [n-hexane-EtOAc (7:3)], the mixture was cooled to room temperature, and the solid product was filtered, washed several times with cold distilled water to obtain the corresponding pure product. Results: After the optimization of the conditions and amount of the catalyst, a series of aromatic aldehydes containing either-electron-donating or electron- withdrawing substituents were successfully used for both of the reactions. The reactions rates and yields under the selected conditions were excellent. The nature and electronic properties of the substituents had no obvious effect on the rate and yield of the reaction. Meanwhile, the catalyst showed acceptable reusability for these two reactions. Conclusion: In this work, we have introduced Succinimide as a green and safe organo-catalyst for the efficient synthesis arylidene malononitrile and tetrahydrobenzo[b]pyran derivatives. The results showed that the catalyst had excellent efficiency in green aqueous media and also the reusability of the catalyst was good.

About 4-Methoxybenzaldehyde, If you have any questions, you can contact Hassanzadeh, F; Shirini, F; Mamaghani, M; Daneshvar, N or concate me.. Product Details of 123-11-5

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Safety of 4′-Hydroxyacetophenone. Recently I am researching about ACTIVATION; RHODIUM; AIR; FUNCTIONALIZATION; DERIVATIVES; BONDS, Saw an article supported by the National NSF of ChinaNational Natural Science Foundation of China (NSFC) [21432005, 21672154, 21871193]; Comprehensive Training Platform of Specialized Laboratory, College of Chemistry, Sichuan University. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Zhang, LQ; Wang, YB; Shi, Y; Wu, YM; Lan, JB; Ma, WX; You, JS. The CAS is 99-93-4. Through research, I have a further understanding and discovery of 4′-Hydroxyacetophenone

An urgent yet challenging task is to overcome the limitations in substrate scope and regio- and chemoselectivity in the oxidative couplings between two arenes for the construction of unsymmetrical 2,2′-difunctional biaryls with diverse application requirements. In this work, a co-oxidant-free Rh(I)/Zn(NTf2)(2)/air catalytic system has been developed for dual chelation-assisted oxidative C-H/C-H cross-couplings between two anilines, between two phenols, and between phenols and anilines, which enables rapid assembly of rich libraries of 2,2′-bianilines, 2,2′-biphenols, and 2′-aminobiphenyl-2-ols. This protocol features air as the sole oxidant, complete regioselectivity, high chemoselectivity, low molar ratio of substrates (even 1:1), convenient operation, and scale-up synthesis. The established catalytic system is tolerant of the substrates having both electron-donating and electron-withdrawing substituents at different positions of the aryl ring. This work further discloses that the chemoselectivity of cross-coupling over homocoupling mainly relies on a suitable combination of two directing groups (i.e., a pair of strongly and weakly coordinating directing groups) rather than the electronically distinct properties between two substrates, which provides an inspiration for designing the matching directing group pair for the dual chelation-assisted oxidative Ar-H/Ar-H cross-couplings. Thus, this strategy allows the highly chemoselective cross-coupling between electronically similar coupling partners, which represents a challenging task in the oxidative Ar-H/Ar-H cross-coupling reactions.

About 4′-Hydroxyacetophenone, If you have any questions, you can contact Zhang, LQ; Wang, YB; Shi, Y; Wu, YM; Lan, JB; Ma, WX; You, JS or concate me.. COA of Formula: C8H8O2

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Synthesis of the impurity F of salbutamol WOS:000541362600001 published article about SULFATE in [Song, Shu-Lian; Lian, Cheng-Xi; Chen, Li-Ping; Huang, Long-Liang] Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China in 2020.0, Cited 8.0. The Name is 4′-Hydroxyacetophenone. Through research, I have a further understanding and discovery of 99-93-4. Safety of 4′-Hydroxyacetophenone

First synthesis of the diastereomeric mixture of salbutamol impurity F is described in seven steps by using 4-hydroxyacetophenone as starting material, with 15.2% total yield. The synthesis provides access to multi-gram quantities of impurity F with good purity for reference supplies and further analytical and toxicology investigations. [GRAPHICS] .

About 4′-Hydroxyacetophenone, If you have any questions, you can contact Song, SL; Lian, CX; Chen, LP; Huang, LL or concate me.. COA of Formula: C8H8O2

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Nguyen, VK; Sichaem, J; Nguyen, HH; Nguyen, XH; Huynh, TTL; Nguyen, TP; Niamnont, N; Mac, DH; Pham, DD; Chavasiri, W; Nguyen, KPP; Duong, TH in [Van-Kieu Nguyen; Chavasiri, Warinthorn] Chulalongkorn Univ, Fac Sci, Ctr Excellence Nat Prod Chem, Dept Chem, Bangkok, Thailand; [Sichaem, Jirapast] Thammasat Univ, Fac Sci & Technol, Lampang Campus, Lampang, Thailand; [Huu-Hung Nguyen; Thi-Phuong Nguyen] Nguyen Tat Thanh Univ, Fac Biotechnol & Environm, Ho Chi Minh City, Vietnam; [Xuan Hieu Nguyen; Thi-Thu-Loi Huynh; Duc-Dung Pham] Ho Chi Minh City Univ Educ, Dept Chem, Ho Chi Minh City, Vietnam; [Niamnont, Nakorn] King Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok, Thailand; [Dinh-Hung Mac] Ha Noi Natl Univ, Univ Sci, Dept Organ Chem, Hanoi, Vietnam; [Kim-Phi-Phung Nguyen] Natl Univ Ho Chi Minh City, Univ Sci, Dept Organ Chem, Ho Chi Minh City, Vietnam; [Thuc-Huy Duong] Ton Duc Thang Univ, Dept Management Sci & Technol Dev, Ho Chi Minh City, Vietnam; [Thuc-Huy Duong] Ton Duc Thang Univ, Fac Appl Sci, Ho Chi Minh City, Vietnam published Synthesis and cytotoxic evaluation of usnic acid benzylidene derivatives as potential anticancer agents in 2021, Cited 13. Safety of 4-Methoxybenzaldehyde. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5.

A series of usnic acid benzylidene derivatives (groups I-V) were designed, synthesized and evaluated for their anticancer activity in the search for potentially new anticancer agents. Compounds 1a, 5b, 2b, 2e and 2f exhibited the most potent cytotoxcity against K562 cell line with IC50 values of 10.0 +/- 3.6, 5.6 +/- 0.4, 8.8 +/- 1.0, 4.5 +/- 0.1 and 8.4 +/- 0.4 mu M, respectively. It is noteworthy that compound 2e displayed potent cytotoxicity against K562 cells without any cytotoxic effect on HEK293 normal cell line.

Safety of 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Nguyen, VK; Sichaem, J; Nguyen, HH; Nguyen, XH; Huynh, TTL; Nguyen, TP; Niamnont, N; Mac, DH; Pham, DD; Chavasiri, W; Nguyen, KPP; Duong, TH or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2019.0 ORG BIOMOL CHEM published article about PROCESS WINDOWS; CHEMISTRY; REACTORS; LIQUID; SAFE in [Garcia-Lacuna, Jorge; Dominguez, Gema; Perez-Castells, Javier] Univ San Pablo CEU, Fac Farm, Dept Quim & Bioquim, Madrid 28668, Spain; [Blanco-Urgoiti, Jaime] CSFlowChem SL, C Boadilla Camino 3, Madrid 28050, Spain in 2019.0, Cited 51.0. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4. SDS of cas: 100-83-4

A new synthesis of treprostinil is described using a plug flow reactor in two of the key steps. First, a Claisen rearrangement reaction is described in scaled flow at multigram amounts. Yields and selectivity of this step are sharply improved compared to those from previous syntheses. Second, the key Pauson-Khand reaction in flow is described under catalytic conditions with 5 mol% of cobalt carbonyl and only 3 equiv. of CO. Scaling up of this reaction safely ensures a good yield of an advanced intermediate which is transformed into treprostinil in three steps. Other improvements are the introduction of the carboxymethyl chain into the phenol from the beginning to reduce the protection-deprotection steps. The synthesis is completed in 14% global yield after 12 linear steps from (S)-epichlorhydrin.

About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Garcia-Lacuna, J; Dominguez, G; Blanco-Urgoiti, J; Perez-Castells, J or concate me.. Recommanded Product: 3-Hydroxybenzaldehyde

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles