Intermediates for the production of microbicidal pyrrolines of the formula ##STR1## in which R is halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 14 C.sub.6 -haloalkyl, and n is 0, 1 or 2, and a method of converting the pyrrolines to phytofungicidal pyrroles by oxidation with bromine or oxygen. Catalysts are provided for the oxidation with oxygen.
用于制备具有以下公式的微
生物杀菌
吡咯烷的中间体 ##STR1## 其中R是卤素,C.sub.1-C.sub.6-烷基或C.sub.1-C.sub.6-卤代烷基,n为0、1或2,并提供一种通过
溴化或
氧气氧化将
吡咯烷转化为植物真菌杀菌
吡咯的方法。还提供了用于
氧气氧化的催化剂。