An environmentally benign approach for the efficient microwave-assisted synthesis of new 2,2′-pyridine derivatives in water by the multicomponent reaction of an aldehyde, indane-1,3-dione, 2-acetylpyridine, and ammonium acetate is reported. It is an efficient and promising synthetic strategy for the construction of the 2,2′-bipyridine skeleton.
An efficient and expeditious microwave-assisted synthesis of 4-azafluorenone derivatives and related compounds is accomplished via a multi-component reaction of an aldehyde, 1,3-indanedione, an arone and ammonium acetate. It is an efficient and promising synthetic strategy to build indenopyridine skeleton. (c) 2006 Elsevier Ltd. All rights reserved.