Optically active compound and ferroelectric liquid crystal composition containing the same
申请人:ARAKAWA KAGAKU KOGYO KABUSHIKI KAISHA
公开号:EP0370497B1
公开(公告)日:1994-02-16
Lewis base-assisted Lewis acid-catalyzed selective alkene formation via alcohol dehydration and synthesis of 2-cinnamyl-1,3-dicarbonyl compounds from 2-aryl-3,4-dihydropyrans
作者:Changhui Liu、Bin Pan、Yanlong Gu
DOI:10.1016/s1872-2067(15)61084-1
日期:2016.6
Abstract Acid-catalyzed dehydration of alcohols has been widely employed for the synthesis of alkenes. However, activated alcohols when employed as substrates in dehydration reactions are often plagued by the lack of alkene selectivity. In this work, the reaction system can be significantly improved through enhancing the performance of Lewis acid catalysts in the dehydration of activated alcohols by