Synthesis and structure of 1-{2,2-dimethyl-4,6-dioxo-5-(1-pyridinio)-1,3-dioxan-5-yl}pyridinium ylide: A new route to Meldrum's acid derivatives

被引：0

作者：

Kuhn, N ^{[1
]}

Al-Sheikh, A ^{[1
]}

Steimann, M ^{[1
]}

机构：

[1] Univ Tubingen, Inst Anorgan Chem, D-72076 Tubingen, Germany

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2003年 / 58卷 / 05期

关键词：

synthetic methods; heterocycles; betaines; crystal structure;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

2-Bromo-5,5-dimethyl-4,6-dioxo-1,3-dioxine (3) reacts with pyridine and aqueous potassium carbonate to give 1-{2,2-dimethyl-4,6-dioxo-5-(1-pyridinio)-1,3-dioxan-5-yl}pyridinium ylide (5). The crystal structure analysis confirms the betaine nature of 5 consisting of two distored ring fragments [interplanar angle 58.0(4)degrees] connected by a C-N single bond [1.440(1) Angstrom].

引用

页码：381 / 384

页数：4

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