Application In Synthesis of 4′-Hydroxyacetophenone. I found the field of Polymer Science very interesting. Saw the article Synthesis and characterization of novel fluorinated poly(ether imide)s containing pyridine and/or phenylphosphine oxide moieties published in 2019.0, Reprint Addresses Liu, XL; Sheng, SR (corresponding author), Jiangxi Normal Univ, Minist Educ, Key Lab Funct Small Organ Mol, Nanchang 330022, Jiangxi, Peoples R China.. The CAS is 99-93-4. Through research, I have a further understanding and discovery of 4′-Hydroxyacetophenone.
4-(4-Trifluoromethylphenyl)-2,6-bis[4-(4-amino-2-trifluoromethylphenoxy)phenyl]pyridine (9FPBAPP), as a new aromatic diamine, was prepared by a modified Chichibabin reaction of 4-(4-nitro-2-trifluoromethylphenoxy)acetophenone with 4-triflouromethylbenzaldehyde, followed by a catalytic reduction. A series of fluorinated poly(ether imide)s containing pyridine and/or phenylphosphine oxide moieties were prepared from bis(3-aminophenyl)phenylphosphine oxide (BAPPO), 2,2 ‘-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), and 9FPBAPP via a conventional two-step thermal imidization procedure with various mole ratios of BAPPO and 9FPBAPP. All the polymers were amorphous and soluble in common organic solvents such as N,N-dimethylacetamide and N-methyl-2-pyrrolidone and had T-g’s of 277-285 degrees C, 5% weight loss temperature of 521-550 degrees C in nitrogen. Furthermore, high char yields and good limited oxygen index values indicated that these polymers exhibited good thermal stability and flame-retardant property. Tough and flexible polymer films also had good mechanical properties with tensile strengths of 75-99 MPa, tensile moduli of 1.1-1.6 GPa, and elongations at break of 12%-24% and low dielectric constants of 2.81-3.53 (1 MHz), as well as high optical transparency with the ultraviolet cutoff wavelength in the range of 350-384 nm.
Application In Synthesis of 4′-Hydroxyacetophenone. Welcome to talk about 99-93-4, If you have any questions, you can contact Zhang, XL; Liu, XL; Wang, QY; Huang, ZZ; Sheng, SR or send Email.
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