1-Benzenesulfinyl-2-hex-1-ynyl-benzene 、 alkaline earth salt of/the/ methylsulfuric acid 在
silica gel 、 air 作用下,
反应 2.0h,
以44%的产率得到2-(2-Benzenesulfinyl-phenyl)-3-butyl-4-methoxy-1,4-dihydro-naphthalen-1-ol
参考文献:
名称:
Studies into diastereoselective Dötz benzannulations for the synthesis of axially chiral biaryls
摘要:
A series of racemic chiral ortho substituents on 1-phenythex-1-yne have been found to control the atroposelective formation of a biaryl from Dotz benzannulation with pentacarbonyl(methoxyphenylmethylene)chromium(0). The results show there is a subtle balance between the chiral ortho substituent controlling atroposelectivity with a dr 3-5:1 and allowing benzannulation to proceed in yields of 44-67%. (C) 2003 Elsevier Ltd. All rights reserved.
Studies into diastereoselective Dötz benzannulations for the synthesis of axially chiral biaryls
摘要:
A series of racemic chiral ortho substituents on 1-phenythex-1-yne have been found to control the atroposelective formation of a biaryl from Dotz benzannulation with pentacarbonyl(methoxyphenylmethylene)chromium(0). The results show there is a subtle balance between the chiral ortho substituent controlling atroposelectivity with a dr 3-5:1 and allowing benzannulation to proceed in yields of 44-67%. (C) 2003 Elsevier Ltd. All rights reserved.