Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer CropScience KK
Original Assignee
Nihon Tokushu Noyaku Seizo KK
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Filing date
Publication date
Application filed by Nihon Tokushu Noyaku Seizo KKfiledCriticalNihon Tokushu Noyaku Seizo KK
Priority to JP63056422ApriorityCriticalpatent/JPS6456674A/en
Publication of JPS6456674ApublicationCriticalpatent/JPS6456674A/en
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
NEW MATERIAL:The compound of formula I (R<1> is H or 1-4C alkyl; R<2> and R<3> are 1-4C alkyl, 1-4C haloalkyl or R<2> and R<3> together form 2-6C alkylene which may be substituted with halogen; R is OH, SH, halogen, NH2 or OW; W is COR<4>, SO2R<4>, COOR<4> or 2-8C dialkylaminosulfonyl; R<4> is 1-4C alkyl which may be substituted with halogen). EXAMPLE:N-(5-tert-butyl-1,3,4-thiazol-2-yl)-3, 4-dimethyl-2-hydroxy-5-oxo-2,5-dihy dropyrrole. USE:A selective herbicide. PREPARATION:A compound of formula I (R is OH) can be produced by reducing the compound of formula II. If necessary, the product is converted to another compound of formula I wherein R is halogen or OW by reacting with a halogena tion agent and a compound of formula W-X (X is halogen) or formula W-O-W.
JP63056422A1987-03-131988-03-112,6-dihydropyrroles and selective herbicide
PendingJPS6456674A
(en)