types of reactions. Further studies on the reaction of α-chloroformylarylhydrazines 1 with thiourea compounds confirmed a novel cyclization and de-cyclization mechanism, which led to give 2-arylhydrazinecarboximidamides 5 and 1,3,4-thiadiazolin-5-ones 6. In addition, various 1,3,4-oxadiazines 9 were obtained by reacting α-chloroformylarylhydrazines with α-cyclodiketones, showing ring cyclization was involved
Substituted 2-phenylhydrazino and 2-phenylazo thiazolines
申请人:Merck & Co., Inc.
公开号:US04046753A1
公开(公告)日:1977-09-06
Thiazolines substituted at the 2-position with 2-substituted phenylhydrazino or 2-substituted phenylazo groups are disclosed. The hydrazino group may also be substituted. The compounds are active anthelmintics, antihypertensive and ectoparasiticidal agents.