Design, Synthesis,
<i>In Vitro</i>
Antimicrobial, Antioxidant Evaluation, and Molecular Docking Study of Novel Benzimidazole and Benzoxazole Derivatives
作者:Bharat B. Kashid、Anil A. Ghanwat、Vijay M. Khedkar、Balasaheb B. Dongare、Mubarak H. Shaikh、Prathmesh P. Deshpande、Yogesh B. Wakchaure
DOI:10.1002/jhet.3467
日期:2019.3
2‐substituted benzimidazole and benzoxazole derivatives as a potential antimicrobial and antioxidant agent were synthesized via coupling of N‐methyl‐o‐phenylenediamine or 2‐amino‐phenol with aromatic aldehyde and acid in the presence of polyphosphoric acid as an efficient catalyst as well as solvent by conventional method in short reaction times with excellent yield. The newly synthesized benzimidazole and benzoxazole
Verfahren zur Herstellung von kernfluorierten Benzoesäure-Derivaten
申请人:BAYER AG
公开号:EP0266512A2
公开(公告)日:1988-05-11
Die Erfindung betrifft ein Verfahren zur Herstellung von Verbindungen der Formel (I)
in welcher X¹, X², Y und Z die in der Beschreibung angegebene Bedeutung haben. Die Verbindungen stellen wertvolle Zwischenprodukte zur Synthese antibakteriell hochwirksamer Chinoloncarbonsäuren nach dem Cycloaracylierungsverfahren dar.
本发明涉及一种制备式 (I) 化合物的工艺,其中 X¹、X²、Y 和 Z 具有描述中给出的含义。 这些化合物是通过环芳基化工艺合成抗菌活性高的喹啉羧酸的重要中间体。
Processes for producing 5-fluorbenzoic acids and their intermediates
申请人:ASAHI GLASS COMPANY LTD.
公开号:EP0431373A2
公开(公告)日:1991-06-12
A process for producing a 5-fluorobenzoic acid of the formula (V), which comprises trichloromethylating a fluorobenzene of the formula (I) to obtain a 5-fluorobenzotrichloride of the formula (II), then reacting it with aqueous ammonia to obtain a 5-fluorobenzonitrile of the formula (III), reacting it with a fluorinating agent to obtain a 5-fluorobenzonitrile of the formula (IV) and hydrolyzing it:
wherein each of X₁ , X₃, Y₁ and Y₃ is a halogen atom, and each of X₂ and Y₂ is hydrogen or a halogen atom.