C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/300, 260/336
C07D 205/08 (2006.01) C07D 205/095 (2006.01)
Patent
CA 1080713
Abstract of the Disclosure 3-substituted-hydroxy-crotonic and isocrotonic acid denvatives of the formula Image (II) wherein R? represents an acyl group, R? is halogen or to- gether with the carbonyl grouping -C(=O)- forms an esteri- fied, protected carboxyl group and R? represents lower alkyl, phenyl-lower alkyl, diphenyl-lower alkyl or tri-lower alkyl silyl, and Y represents a leasing group, are prepared by etherification of esters of 3-hydroxy-crotonic acid compounds.
325019
Bickel Hans
Woodward Robert B.
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