Tag: M.W:100-200

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.6146-52-7,5-Nitroindole,as a common compound, the synthetic route is as follows.

6146-52-7, 4-DMAP (414.4 mg, 3.4 mmol) and di-tert-butyl dicarbonate (740.3 mg, 3.4 mmol) were added to 5-nitro- l //-indole (500.0 mg, 3.1 mmol) in DCM (5 mL), stirred for 1 h at ambient temperature, 2 M HCL was added followed by extraction with DCM, organic phase was collected and the solvent was removed un- der reduced pressure. Yield 724.0 mg (89%). HPLC 100%. LC-MS 263 (M+H)+.

As the paragraph descriping shows that 6146-52-7 is playing an increasingly important role.

Reference£º
Patent; BIOVITRUM AB (PUBL); WO2007/147874; (2007); A1;,
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

608-07-1, 2-(5-Methoxy-1H-indol-3-yl)ethanamine is a indole-building-block compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: In an 5 ml RB flask with refluxing condensor were added a mixtureof 4-nitrobenzaldehyde (2a, 33 mg, 0.22 mmol, 1.1 equiv.,), tryptamine(1a, 32 mg, 0.20 mmol, 1 equiv.,) in NMP (1 ml) under oxygen atmosphereand the resulting mixture was stirred at 140 C for 24 h. After thereaction was complete, the reaction mixture was concentrated underreduced pressure using rotary evaporator. The crude product thus obtainedwas purified by flash column chromatography on silica gel usingmixture of hexane-ethyl acetate (70:30) as eluent to obtain the product6a as Yellow solid; 91% yield (53.3 mg, 0.182 mmol); mp:244-246 C(Lit.20: 243-246 C);.

608-07-1, As the paragraph descriping shows that 608-07-1 is playing an increasingly important role.

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Article; Ramu; Srinath; kumar, A. Aswin; Baskar; Ilango; Balasubramanian; Molecular catalysis; vol. 468; (2019); p. 86 – 93;,
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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.271-34-1,5-Azaindole,as a common compound, the synthetic route is as follows.

271-34-1, To a solution of lH-pyrrolo[3,2-c]pyridine (XCI) (1 g, 8.47 mmol, 1.0 eq) in THF (10 mL) was added NaH (60% in mineral oil) (0.24 g, 10.2 mmol, 1.2 eq) at 0C. The mixture was stirred at 0C for 0.5 h. PhS02Cl (XCII) (1.80 g, 10.2 mmol, 1.2 eq) was then added to the solution at 0C. The reaction was warmed to room temperature and stirred for 1 h. Aqueous NaHCC>3 (30 mL) was added and then extracted with EtOAc (x 3). The organic phase was combined and dried over Na2SC>4. Removal solvents under reduced pressure gave l-(phenylsulfonyl)-lH- pyrrolo[3,2-c]pyridine (XCIII) as a yellow solid. (1.52 g, 5.88 mmol, 69.4% yield). NMR (CDC , 400 MHz) delta ppm 6.75 (d, J=3.6Hz, 1H), 7.48 (t, J=8Hz, 2H), 7.55 – 7.61 (m, 2H), 7.89 – 7.93 (m, 3H), 8.49 (d, J=6Hz, 1H), 8.88 (s, 1H); ESIMS found for C13H10N2O2S mlz 259.1 (M+H).

The synthetic route of 271-34-1 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; SAMUMED, LLC.; KC, Sunil Kumar; WALLACE, David Mark; CAO, Jianguo; CHIRUTA, Chandramouli; HOOD, John; (265 pag.)WO2017/24010; (2017); A1;,
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

4837-90-5, 4-Methoxy-1H-indole is a indole-building-block compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: The flow equipment was set up according to Table 2. Indole 2(1.65 mmol) and aldehyde 1 (0.82 mmol) were taken up in THF(5 mL) and filled into loop 1. Sc(OTf)3 (5 mol%, 0.041 mmol) was taken up in THF (5 mL) and filled into loop 2. The two loops were simultaneously injected and the plugs met at a T-piece before passing through a 20 mL reactor coil, pressurised by a 100 psi back pressure regulator and the outflow collected. The solvent was removed in vacuo and the mixture purified by flash column chromatography using 40-60 petroleum ether:ethyl acetate as eluent to afford the title compound 3.

4837-90-5, As the paragraph descriping shows that 4837-90-5 is playing an increasingly important role.

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Article; Mohapatra, Swapna S.; Wilson, Zoe E.; Roy, Sujit; Ley, Steven V.; Tetrahedron; vol. 73; 14; (2017); p. 1812 – 1819;,
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

15861-24-2, Indole-5-carbonitrile is a indole-building-block compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,15861-24-2

General procedure: B(C6F5)3 (67.3 mg, 0.13 mmol, 5 mol %) was added to a stirred solution of 3,4-dichlorobenzaldehyde (172 mg, 1 mmol) and NaN3 (97.5 mg, 1.5 mmol) in DMF (5 mL) and was heated at 120 C. After completion of reaction (as monitored by TLC), the reaction mixture was cooled to room temperature and was added 5 mL of cold water followed by 10 mL of 2 N HCl and 10 mL of ethyl acetate. The resulting mixture was stirred vigorously for 15 min. The organic layer was separated and aqueous layer was again extracted with ethyl acetate (3 ¡Á 15 mL). The combined organic layer was washed with water and dried over anhydrous sodium sulfate and was evaporated under reduced pressure. The crude product was purified by column chromatography (silica gel, EtOAc/hexane 9:1) to obtain pure 5-(3,4-dichlorophenyl)-1H-tetrazole. The known compounds were characterized and confirmed by comparison of their spectral data and physical properties with reported literature.

As the paragraph descriping shows that 15861-24-2 is playing an increasingly important role.

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Article; Prajapti, Santosh Kumar; Nagarsenkar, Atulya; Babu, Bathini Nagendra; Tetrahedron Letters; vol. 55; 24; (2014); p. 3507 – 3510;,
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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.2338-71-8,5-Fluoro-1H-indole-3-carbaldehyde,as a common compound, the synthetic route is as follows.

General procedure: To a solution of an appropriate indole, azaindole or alternative heterocycles (1.0 eq) and di-ferf-butyl dicarbonate (1eq. to 2 eq., more in particular 1.2 eq) in acetonitrile was added DMAP (0.1 to 0.5 eq. more in particular 0.1 eq). The reaction mixture was stirred overnight at room temperature. The reaction mixture was concentrated under reduced pressure. The residue was dissolved in dichloromethane and washed with a saturated sodium bicarbonate solution. The phases were separated. The aqueous phase was extracted with dichloromethane. The organic phases were combined, washed with a saturated ammonium chloride solution, water and brine, dried over magnesium sulfate, filtered and concentrated under reduced pressure. The BOC-protected compound was used in the next step without further purification., 2338-71-8

Big data shows that 2338-71-8 is playing an increasingly important role.

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Patent; KATHOLIEKE UNIVERSITEIT LEUVEN; BARDIOT, Dorothee; CARLENS, Gunter; DALLMEIER, Kai; KAPTEIN, Suzanne; McNAUGHTON, Michael; MARCHAND, Arnaud; NEYTS, Johan; SMETS, Wim; WO2013/45516; (2013); A1;,
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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.10241-97-1,5-Methyl-1H-indole-2-carboxylic acid,as a common compound, the synthetic route is as follows.

General procedure: To a solution of 5-methyl-1H-indole-2-carboxylic acid (20) (263mg, 1.50mmol) in THF (7mL) were added 2-(piperidin-4-yl)ethanol (213mg, 1.65mmol), 1-hydroxybenzotriazole (HOBt, 101mg, 0.750mmol), and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDAC) hydrochloride (316mg, 1.65mmol), followed by stirring at room temperature for 14h. The reaction mixture was partitioned between ethyl acetate and 0.5M aqueous hydrochloric acid. The organic layer was washed with saturated aqueous sodium hydrogen carbonate solution and saturated aqueous sodium chloride solution, dried over anhydrous sodium sulfate, and then concentrated in vacuo. The residue was recrystallized from ethyl acetate/acetonitrile (5mL/2mL) to give 3 (365mg, 85.0percent) as a beige powder.

10241-97-1, As the paragraph descriping shows that 10241-97-1 is playing an increasingly important role.

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Article; Watanabe, Kazushi; Kakefuda, Akio; Yasuda, Minoru; Enjo, Kentaro; Kikuchi, Aya; Furutani, Takashi; Naritomi, Yoichi; Otsuka, Yukio; Okada, Minoru; Ohta, Mitsuaki; Bioorganic and Medicinal Chemistry; vol. 21; 17; (2013); p. 5261 – 5270;,
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

100846-24-0, 5-(Trifluoromethyl)indole is a indole-building-block compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

(a) Methyl 2-(5-trifluoromethyl-1H-indol-3-yl)oxoacetate To a solution of 5-trifluoromethylindole (2.0 g, 10.8 mmol) in diethyl ether (30 mL) at 4 C. was added a 2.0 M solution of oxalyl chloride in methylene chloride (5.5 mL, 11.0 mmol). The resulting solution was allowed to warm to room temperature. After 90 min, the solution was cooled to -78 C. To this solution was added 25% (w/w) solution of sodium methoxide in methanol (5.0 mL, 21.9 mmol). The resulting solution was allowed to warm to room temperature. After one hour, the solution was filtered to give the title compound (1.24 g, 43%) as a yellow solid. 1H N (DMSO-d6) delta 8.66 (m, 1H), 8.45 (s, 1H), 7.78 (m, 1H), 7.60 (m, 1H), 3.89 (s, 3H).

100846-24-0, The synthetic route of 100846-24-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Engler, Thomas Albert; Furness, Kelly Wayne; Malhotra, Sushant; Briggs, Stephen Lyle; Brooks, Harold Burns; Clawson, David Keyes; Sanchez-Martinez, Concepcion; Zhang, Faming; Zhu, Guoxin; US2004/48915; (2004); A1;,
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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.310886-79-4,Methyl 5-fluoro-1H-indole-3-carboxylate,as a common compound, the synthetic route is as follows.

Example 169; 5 -Fluoro- 1 – |Y4-methyl-2-pyridin-2-y l-pyrimidine-5 -carbonyP-amino] – 1 H-indole-3 -carboxylic acid; Step 1 : A solution of 5-fluoro- lH-indole-3-carboxylic acid methyl ester (510 mg, 2.6 mmol) in NMP (6.5 rnL) at rt is treated with KOt-Bu (342 mg, 2.9 mmol) and stirred at rt for 0.5 h. A solution of O-amino-4-nitrobenzoic acid (558 mg, 3.0 mmol) in NMP (2.5 mL) is added and the mixture is stirred for 3 h. The mixture is diluted with EtOAc (50 mL) and washed with 10% aqueous NaHCO3 (50 mL). The organic layer is separated, dried (Na2SO4), filtered and concentrated in vacuo to afford l-amino-5-fluoro-lH-indole-3-carboxylic acid methyl ester, which is used in the next step without further purification., 310886-79-4

As the paragraph descriping shows that 310886-79-4 is playing an increasingly important role.

Reference£º
Patent; SANOFI-AVENTIS; WO2008/121670; (2008); A1;,
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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1670-83-3,Indole-7-carboxylic acid,as a common compound, the synthetic route is as follows.

Example 18; Preparation of 1H-Indole-7-carboxylic acid (4-tert-butyl-benzyl)-[2-(3,4-dichloro-phenyl)-ethyl]-amide; To a solution of 48 mg (0.3 mmol) of 1H-indole-7-carboxylic acid and 96 mg of TBTU (0.3 mmol) in 4 ml DMF, were added 0.26 ml (1.5 mmol) of N,N-diisopropylethyl amine. After stirring for 5 min at rt, 95 mg (0.3 mmol) (4-tert-butyl-benzyl)-[2-(3,4-dichloro-phenyl)-ethyl]-amine in 1 ml DMF was added. After 1.5 h stirring at rt, the reaction mixture was diluted with 50 ml water and extracted with 2¡Á50 ml EtOAc. The combined organic phases were washed with water and brine, dried with magnesium sulfate, filtered and concentrated in vacuo. The yellow solid foam was purified by column chromatography (8 g silica gel; heptane/EtOAc 9:1) to give 137 mg (94%) of a white solid. MS (ISP) 479.5 (M+H)+., 1670-83-3

1670-83-3 Indole-7-carboxylic acid 74281, aindole-building-block compound, is more and more widely used in various fields.

Reference£º
Patent; Conte-Mayweg, Aurelia; Kuehne, Holger; Luebbers, Thomas; Maugeais, Cyrille; Mueller, Werner; Pflieger, Philippe; US2006/30613; (2006); A1;,
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