Fungicides.

摘要

An intermediate chemical of formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="37" wi="81" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>in which A is 0 or S(O)<Sub>n</Sub> wherein n is 0, 1 or 2; W is a substituted pyridinyl or pyrimidinyl group; R<Sup>1</Sup> is optionally substituted alkyl and X, Y and Z have various specified values. The chemical is useful for the preparation of agricultural acrylic acid derivatives described in EP-A-242081.