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Synthesis of chromeno[2,3- b]chromenes from 2-dimethylaminophenols and malononitrile.
- Source :
-
Chemistry of Heterocyclic Compounds . Aug2013, Vol. 49 Issue 5, p683-688. 6p. 1 Diagram. - Publication Year :
- 2013
-
Abstract
- 5 a-Amino-5 aH,11 H-chromeno[2,3- b]chromene-11 a(12 H)-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-4 H-chromene-3-carbonitriles and the aforementioned o-quinone methides. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MALONONITRILE
*NITRILES
*CARBONITRILES
*QUINONE
*THERMOLYSIS
*HETEROCYCLIC compounds
Subjects
Details
- Language :
- English
- ISSN :
- 00093122
- Volume :
- 49
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Chemistry of Heterocyclic Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 89657632
- Full Text :
- https://doi.org/10.1007/s10593-013-1298-x