we developed a versatile method for [3+2] cycloaddition with diverse nitriles to yield substituted oxazoles. Our approach can be extended to bis-oxazoles, isotope-labeled oxazoles, drug diversification, as well as natural product and drug synthesis. Integration of photolysis with continuous-flow chemistry demonstrated applicability, scalability, and robustness for oxazole synthesis.
Process for the preparation of aromatically substituted acetic acids
申请人:SAGAMI CHEMICAL RESEARCH CENTER
公开号:EP0011279A1
公开(公告)日:1980-05-28
Aromatically substituted acetic acids are prepared by the reaction of an aromatically substituted aldehyde with a combination of a trihalomethane and an alkanethiol, and by the reaction of an alcohol derivative (2,2,2-trihalo-1-arylethanol) with an alkanethiol, in the presence of a base in a mixed medium of water and an aprotic polar solvent.