The present invention provides compounds of formula I and processes for the preparation and purification thereof. ##STR1## Compounds of formula I are useful as intermediates in the manufacture of 6-(arylcarbonyl)-4-oximino-dihydrobenzothiopyran herbicidal agents.
本发明提供了公式I的化合物及其制备和纯化的过程。##STR1## 公式I的化合物在制造6-(芳基羰基)-4-氧代胺基二氢
苯并噻吩除草剂中作为中间体是有用的。