| 摘要 |
<p>Compounds of general formula (II): <IMAGE> and stereoisomers thereof; wherein X, Y and Z, which are the same or different, are hydrogen or various substituents; R<1> is optionally substituted alkyl; A is either an oxygen atom or S(O)n wherein n is 0, 1 or 2; R<10> is hydrogen or a protecting group for a phenol or thiophenol group; and R<9> is optionally substituted alkyl, hydrogen or a metal atom; provided that - when R<10> is hydrogen then R<9> is not hydrogen or a metal atom, - when A is oxygen, R<1> and R<9> are both methyl and R<10> is either hydrogen or a benzyl group then none of X, Y and Z is hydrogen, - when R<9> is hydrogen A is oxygen, R<1> is methyl and R<10> is a benzyl group then none of X, Y and Z is hydrogen, are used in the production of acrylic acid derivatives which have in particular fungcidal activity.</p> |
