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, Norbert ^{[1
]}

Al-Sheikh, Ahmed ^{[1
]}

Steimann, Manfred ^{[1
]}

机构：

[1] Inst. für Anorganische Chemie, Universität Tübingen, D-72076 Tübingen

来源：

Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences | 2003年 / 58卷 / 05期

关键词：

Betaines; Crystal Structure; Heterocycles; Synthetic Methods;

D O I：

10.1515/znb-2003-0504

中图分类号：

学科分类号：

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)°] connected by a C-N single bond [1.440(1) Å].

引用

页码：381 / 384

页数：3

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