Process for preparing 5-[1-(4-chlorophenyl)-methylene]-1-hydroxymethyl-2,2-dimethyl-cyclopentanol
A process for preparing diols (Ia) and (Ib)
by reacting an oxirane (II)
with water and hydrogenating the resulting 5[1-(4-chlorophenyl)-meth-(E)-ylidene]-1-hydroxymethyl-2, 2-dimethyl-cyclopentanol (III) with hydrogen in the presence of a metal catalyst.
Compounds (Ia), (Ib) and (III) are intermediates for synthesizing Metconazole.
制备5-[1-(4-
氯苯基)-亚甲基]-1-羟甲基-2,2-二甲基
环戊醇(Ia)和(Ib)的方法,包括将环氧烷(II)与
水反应,并在
金属催化剂存在下用
氢气加氢生成5-[1-(4-
氯苯基)-甲基-(E)-亚甲基]-1-羟甲基-2,2-二甲基
环戊醇(III)。化合物(Ia)、(Ib)和(III)是合成
甲霜灵的中间体。