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A Facile Microwave Assisted One-pot Strategy for the Synthesis of Bis-hexahydroquinazolin-5(6H)-ones
Milan Ch. Dutta,1 Kaushik Chanda,1 R. L. Nongkhlaw,2 and Jai N. Vishwakarma
11Organic Research Lab., Department of Chemistry, St. Anthony's College, Shillong-793 001, India
2Department of Chemistry, North-Eastern Hill University, Shillong-793 022, India
Abstract
A facile microwave assisted one-pot synthetic protocol has been devised for the synthesis of 3,3'-(alkanediyl) bis (1-phenyl-1,2,3,4,7,8-hexahydroquinazolin-5(6H)-ones (2a-c), 3,3'-(1,4-phenylene) bis (1-phenyl-1,2,3,4,7,8-hexahydroquinazolin-5(6H)-one (2d),3,3'-(alkanediyl) bis (7,7-dimethyl-1-phenyl-1,2,3,4,7,8-hexahydroquinazolin-5(6H)-ones (2e-g) and 3,3'-(1,4-phenylene) bis(7,7-dimethyl-1-phenyl-1,2,3,4,7,8-hexahydroquinazolin-5(6H)-one (2h) by the cyclocondensation of cyclic enaminones 1a, b with diamines and formaldehyde.
Copyright
Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
