[EN] PROCESS FOR PREPARATION OF 4,4,4- TRIFLUOROBUT-2-EN-1-OL AND INTERMEDIATE THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 4,4,4-TRIFLUOROBUT-2-ÈNE-1-OL ET INTERMÉDIAIRE DE CELUI-CI
申请人:SRF LTD
公开号:WO2020148780A1
公开(公告)日:2020-07-23
The present invention provides a process for preparation of 4,4,4- trifluorobut-2-en-1-ol from alkyl 4,4,4-trifluorobut-2-enoate and also provides one step process for preparation of alkyl 4,4,4-trifluorobut-2-enoate from corresponding hydroxy derivative using mild and easily available reagents.
A novel production process capable of obtaining an optically active alcohol in a high optical purity by subjecting a &bgr;-keto ester such as a 3-perfluoroalkyl-3-oxopropionate ester or a 3-trichloroalkyl-3-oxopropionate ester to asymmetric reduction in simple and convenient operations.
Process for the preparation of substituted 3-hydroxybutyrate esters
申请人:ROHM AND HAAS COMPANY
公开号:EP1052240A1
公开(公告)日:2000-11-15
The present invention provides a solventless process for the catalytic hydrogenation of esters of 4,4,4-trihaloacetoacetic acid using a platinum catalyst in the presence of an acid or base co-catalyst to provide the analagous 3-hydroxybutyrate ester. Such 3-hydroxybutyrate esters are useful as solvents, cleaners or fine chemical intermediates.