Stereospecific syntheses of 5-alkyl-3-ethoxy-2-((phenylchalcogeno)methylene)tetrahydrofurans

被引:14
作者
Yoshimatsu, M
Naito, M
Shimizu, H
Muraoka, O
Tanabe, G
Kataoka, T
机构
[1] GIFU PHARMACEUT UNIV,GIFU 502,JAPAN
[2] KINKI UNIV,FAC PHARMACEUT SCI,HIGASHIOSAKA,OSAKA 577,JAPAN
关键词
D O I
10.1021/jo961071c
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
2-Ethoxy-4-(phenylchalcogeno)but-3-ynyl ketones 1-10 were reduced with LiBH4 in Et(2)O diastereoselectively to give 5-(phenylchalcogeno)pent-4-yn-1-ols 11-20. Treatment of the phenylchalcogen-substituted alkynyl alcohols 11-20 with t-BuOK in t-BuOH provided useful (Z)-2-((phenylchalcogeno)methylene)tetrahydrofurans 21-31 stereoselectively.
引用
收藏
页码:8200 / 8206
页数:7
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