Synthesis of chromeno[2,3-b]chromenes from 2-dimethylaminophenols and malononitrile

被引：0
|
作者：
V. A. Osyanin
D. V. Osipov
D. D. Borisov
Yu. N. Klimochkin
机构：
[1] Samara State Technical University,
来源：
Chemistry of Heterocyclic Compounds | 2013年 / 49卷
关键词：
2-amino-4; -chromene-3-carbonitriles; chromeno[2,3-; ]chromenes; Mannich base; -quinone methides; cascade reactions; [4+2] cycloadditions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
5a-Amino-5aH,11H-chromeno[2,3-b]chromene-11a(12H)-carbonitriles were synthesized from malono-nitrile and o-quinone methides, generated in situ by the thermolysis of phenolic Mannich bases in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene. It was also shown that this heterocyclic system can be obtained from 2-amino-4H-chromene-3-carbonitriles and the aforementioned o-quinone methides.
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页码：683 / 688
页数：5
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