Annelation reactions of 3-phenylthiobut-3-en-2-one. A new method of constructing fused phenols
作者:Ken Takaki、Michikazu Okada、Michio Yamada、Kenji Negoro
DOI:10.1039/c39800001183
日期:——
Reactions of 3-phenylthiobut-3-en-2-one with enolate anions of cyclohexanone and cyclopentanone gave good yields of 8a-hydroxy-3-phenylthio-2-decalone and 3a-hydroxy-6-phenylthiohexahydroindan-5-one which were readily converted into 5,6,7,8-tetrahydro-2-naphthol and indan-5-ol, respectively, on exposure to toluene-p-sulphonic acid: a similar reaction of the enolate of cycloheptanone and subsequent
3-苯基硫丁-3-en-2-one与环己酮和环戊酮的烯酸酯阴离子的反应产生了8a-羟基-3-苯基硫代-2-癸酮和3a-羟基-6-苯基硫代六氢茚满-5-酮的良好收率暴露于甲苯-对-磺酸,分别转化为5,6,7,8-四氢-2-萘酚和茚满-5-醇:环庚酮烯醇的相似反应和随后的乙醇钠处理得到2 -羟基-5,6,7,8-四氢苯并环庚烯。