35675-46-8Relevant articles and documents
Compound based on benzimidazole substituted phenyl n-butylamide and preparation method of compound
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Paragraph 0203-0206, (2021/03/06)
The invention relates to a compound based on benzimidazole substituted phenyl n-butylamide and a preparation method of the compound. According to the method disclosed by the invention, nitrification and polyphosphoric acid cyclization reactions are avoided, and the generation of a large amount of waste acid reaction liquid is avoided from the source. The synthesis method disclosed by the inventionhas the advantages of simplicity, high efficiency, mild conditions, less pollutants and the like, and is suitable for being developed into a green sustainable production process.
Spiro-bis-benzoxazole diamine and preparation method and application thereof, polyimide and preparation method and application thereof
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Paragraph 0065-0066; 0202-0204, (2021/09/04)
The invention belongs to the technical field of macromolecules, and particularly relates to spirobibenzoxazole diamine, a preparation method and application thereof, polyimide and a preparation method and application thereof. According to the present invention, the spiro-bis-benzoxazole diamine is adopted as the monomer to prepare the polyimide, and the spiro structure is introduced into the diamine structure, such that the obtained polyimide has excellent solubility and excellent processability; meanwhile, the polyimide forms a microporous structure, so that the gas permeability of the polyimide is improved.
Novel commercial scale synthetic approach for 5-cyanoindole: A potential intermediate for vilazodone hydrochloride, an antidepressant drug
VENKATANARAYANA,NUCHU, RAVI,SHARATH BABU,GARREPALLI, GANGA SRAVANTHI,TANGALLAPALL, SUDHAKAR
, p. 2460 - 2462 (2020/10/22)
Present work describes the synthesis of 5-cyanoindole, a common intermediate used in various synthetic route of the antidepressant vilazodone hydrochloride. The protocol is both robust and commercially viable, utilizing readily available and low-cost materials and the isomers are environmental friendly than previously reported routes through its evading use of cyanide reagents and heavy metals.