A facile synthesis of stable heterocyclic fused ring phosphorus ylides

被引:0
|
作者
Maghsoodlou, MT [1 ]
Hazeri, N [1 ]
Khorasani, SMH [1 ]
Afshari, G [1 ]
Nassiri, M [1 ]
机构
[1] Univ Sistan, Dept Chem, Zahedan, Iran
来源
关键词
acetylenic ester; NH-acid; stable phosphorus ylide; triphenylphosphine;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Stable crystalline phosphorus ylides were obtained in excellent yields from the 1:11 addition reaction between triphenylphosphine, dialkyl acetylenedicarboxylates, and strong NH-acids, such as 7-azaindole. These stabilised phosphoranes exist as a mixture of two geometrical isomers as a result of restricted rotation around the carbon-carbon partial double bond resulting from conjugation of the ylide moiety with the adjacent carbonyl group.
引用
收藏
页码:727 / 728
页数:2
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