申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0065814A1
公开(公告)日:1982-12-01
These compounds have the formula
wherein R and R1, which may be the same or different, are hydrogen or alkyl, preferably C1-C4 alkyl, and X, Y and Z are each independently hydrogen, chlorine or fluorine, provided that when R, R' and Z are hydrogen, X and Y are not both hydrogen or both fluorine, and are prepared by reacting (a) an alkyl magnesium halide of formula
with a benzophenone of formula
wherein Hal is halogen; (b) a compound of formula
with a Grignard compound of formula
or, when X and Y are the same and Z is hydrogen; (c) 2 mols of a Grignard compound of formula (VIII) with 1 mol of an ester of formula
R being a hydrocarbon radical.
The compounds are intermediates for the preparation of fungicidal compounds.
这些化合物具有如下式子,其中 R 和 R1(可以相同或不同)是氢或烷基,最好是 C1-C4 烷基,X、Y 和 Z 各自独立地是氢、氯或氟,但当 R、R'和 Z 是氢时,X 和 Y 不能都是氢或都是氟,这些化合物是通过以下反应制备的:(a) 式中的烷基卤化镁与式中的二苯甲酮反应,其中 Hal 是卤素;(b) 式中的化合物与式中的格氏化合物反应,或当 X 和 Y 相同且 Z 是氢时;(c) 2 摩尔的式(VIII)格氏化合物与 1 摩尔的式中 R 为烃基的酯反应。 这些化合物是制备杀菌化合物的中间体。