A novel copper‐catalyzed tandem trifluoromethylation/semipinacol rearrangement reaction of allylic alcohols has been achieved under mild conditions. This reaction is valuable for the difunctionalization of alkenes through simultaneous construction of a CCF3 bond and a quaternary carbon center, and could provide a straightforward strategy for the preparation of α‐quaternary β‐trifluoromethyl ketone
PRODUCTION OF 1,5-PENTANEDIOL VIA UPGRADING OF TETRAHYDROFURFURYL ALCOHOL
申请人:Wisconsin Alumni Research Foundation
公开号:EP3694830A1
公开(公告)日:2020-08-19
[EN] PRODUCTION OF 1,5-PENTANEDIOL VIA UPGRADING OF TETRAHYDROFURFURYL ALCOHOL<br/>[FR] PRODUCTION DE 1,5-PENTANEDIOL PAR VALORISATION DE L'ALCOOL TÉTRAHYDROFURFURYLIQUE
申请人:WISCONSIN ALUMNI RES FOUND
公开号:WO2019074562A1
公开(公告)日:2019-04-18
A method of making 1,5 -pentanediol from tetrahydrofurfural alcohol. The method includes the steps of dehydrating tetrahydrofurfural alcohol (THFA) to dihydropyran (DHP); hydrating at least a portion of the DHP to 2-hydroxy-tetrahydropyran (2-HY-THP) in the presence of a solid acid catalyst; and hydrogenating at least a portion of the 2-HY-THP to 1,5- pentanediol. The method can be conducted entirely in the absence of noble metal catalysts.