申请人:American Cyanamid Company
公开号:US03994924A1
公开(公告)日:1976-11-30
The present invention relates to 4,5,6,7-tetrahydro-7-oxobenzo[b]thien-4-yl isocyanate and isothiocyanate, which are novel and useful intermediates for the preparation of 4,5,6,7-tetrahydro-7-oxobenzo[b]thien-4-ylurea and thiourea compounds which are animal growth promoters. The present invention also relates to methods of preparation for the above-identified thienyl isocyanates and isothiocyanates.
本发明涉及4,5,6,7-四氢-7-氧代苯并[b]噻-4-基异氰酸酯和异硫氰酸酯,它们是制备动物生长促进剂4,5,6,7-四氢-7-氧代苯并[b]噻-4-基脲和硫脲化合物的新颖且有用的中间体。本发明还涉及上述噻基异氰酸酯和异硫氰酯的制备方法。