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Facile, efficient, and eco‐friendly synthesis of benzo[b]pyran‐2‐imines over MgO and transformation to the coumarin derivatives
Author(s) -
Valizadeh Hassan,
Fakhari Ashraf
Publication year - 2009
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.265
Subject(s) - chemistry , malononitrile , salicylaldehyde , knoevenagel condensation , pyran , coumarin , imine , transformation (genetics) , organic chemistry , combinatorial chemistry , condensation reaction , nitrile , stereochemistry , schiff base , catalysis , biochemistry , gene
AbstractRoom temperature synthesis of benzo[b]pyran‐2‐imine derivatives via the Knoevenagel condensation of malononitrile and cyanoacetates with salicylaldehyde derivatives over MgO and their transformation to the known coumarins is described. The satisfactory results were obtained with good yields, short reaction time, and simplicity in the experimental procedure. J. Heterocyclic Chem., (2009).