S-(2-乙酰苯基)-二甲基硫代氨基甲酸酯环合产物的确定  

Clarification on the Structure of Cyclization Product of S-2-Acetylphenyl Dimethylthiocarbamate

作　　者：戈俊[1] 裘亚[1] 王春丽[1] Jesse Yang 陈瑛[1] 

机构地区：[1]复旦大学药学院,上海201203 [2]Intern from Henry M.Gunn High School,Palo Alto,CA USA

出　　处：《有机化学》2012年第11期2148-2153,共6页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金(Nos.20272010,30200348,30873164)资助项目~~

摘　　要：通过1H NMR,NOE和X-ray等方法,确定了S-(2-乙酰苯基)-二甲基硫代氨基甲酸酯在NaH/DMF条件下的环合产物为苯并-2H-噻喃-2-酮,而非文献报道的苯并-4H-噻喃-4-酮.探讨了苯并-2H-噻喃-2-酮和苯并-4H-噻喃-4-酮结构在氢谱上的规律性差异.The structure of cyclization product from the reaction of S-2-acetylphenyl dimethylthiocarbamate with Nail in DMF was clarified by 1H NMR, NOE and X-ray. It proved to be a benzo-2H-thiopyran-2-one instead of a benzo-4H- thiopyran-4-one reported in literature. The 1H MNR chemical shift data of seven benzo-2H-thiopyran-2-ones and benzo-4H- thiopyran-4-ones were discussed, which might be useful for distinguishing benzo-2H-thiopyran-2-ones from benzo-4H- thiopyran-4-ones.

关 键 词：苯并-4H-噻喃-4-酮 苯并-2H-噻喃-2-酮 环合 S-(2-乙酰苯基)-二甲基硫代氨基甲酸酯 

分 类 号：TQ463[化学工程—制药化工]