Process for the fluorination of acrylic acid and derivatives thereof and
申请人:Bayer Aktiengesellschaft
公开号:US05072030A1
公开(公告)日:1991-12-10
Difluoropropionic acid and derivatives thereof are prepared by bringing elemental fluorine in the presence of a solvent into an addition reaction with appropriate acrylic acids or derivatives thereof. In this way, it is also possible to obtain novel fluorinated esters of 2,3-difluoropropionic acid.
[EN] FLUORINATION OF ACRYLATE ESTERS AND DERIVATIVES<br/>[FR] FLUORATION D'ESTERS D'ACRYLATE ET DÉRIVÉS
申请人:RELYPSA INC
公开号:WO2013003495A3
公开(公告)日:2013-05-10
Boguslavskaya,L.S. et al., Journal of Organic Chemistry USSR (English Translation), 1971, vol. 7, p. 1382 - 1387
作者:Boguslavskaya,L.S. et al.
DOI:——
日期:——
BOGUSLAVSKAYA L. S.; CHUVATKIN N. N.; MOROZOVA T. V.; PANTELEEVA I. YU.; +, ZH. ORGAN. XIMII, 23,(1987) N 6, 1173-1177
作者:BOGUSLAVSKAYA L. S.、 CHUVATKIN N. N.、 MOROZOVA T. V.、 PANTELEEVA I. YU.、 +
DOI:——
日期:——
Synthese von α-Fluoracrylsäure und Derivaten
作者:K.-R. Gassen、D. Bielefeldt、A. Marhold、P. Andres
DOI:10.1016/s0022-1139(00)80116-5
日期:1991.12
Three new routes to derivatives of alpha-fluoracrylic acid, including a laboratory synthesis and a large-scale method, are reported. The processes are (i) addition of elementary fluorine to acrylic esters and subsequent elimination of HF; (ii) addition of difluorocarbene to isopropenyl methyl ether, oxidation via ring opening and dehalogenation; and (iii) 'nitrofluorination' of 2,3-dichloropropene, hydrolysis and dechlorination.