Condensation reactions of o-phenylenediamine and 2 equiv of acetone produce biaryl-substituted 1, 5-benzodiazepines. The synthetic protocol shows general applicability since similar reaction of o-phenylenediamines, o-aminophenol, and o-aminothiophenol with ketones or chalcones leads to formation of functionalized 1,5-benzoheteroazepines in good to excellent yields. The synthetic protocol fulfills many green-chemical requirements using simple MW-assistance to promote the activation of ketones and the eco-compatible Er(III) triflate as activator of chalcones. (C) 2011 Elsevier Ltd. All rights reserved.
Chuiguk,V.A.; Borodulya,L.S., Soviet progress in chemistry, 1969, vol. 35, # 11, p. 56 - 58
作者:Chuiguk,V.A.、Borodulya,L.S.
DOI:——
日期:——
The 1,3-Dipolar Cycloaddition as an Approach to Novel Tricyclic O,N- and S,N-Heterocycles
作者:Herbert Bartsch、Thomas Erker
DOI:10.3987/com-88-4557
日期:——
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