An Efficient One-Pot Synthetic
Method for 2,4-Disubstituted 7-Arylpyrido[4,3-d]pyrimidines from 2,4-Disubstituted
6-(Arylethynyl)pyrimidine-5-carbaldehydes and tert-Butylamine
Study on the cyclization of 6-arylethynylpyrimidine-5-carbaldehydes with tert-butylamine: microwave versus thermal preparation of pyrido[4,3-d]pyrimidines
摘要:
Thermal and microwave initiated cyclization of 2,4-disubstituted 6-arylethynylpyrimidine-5-carbaldehydes with tert-butylamine has been studied. A novel high-yielding preparation of 2,4-disubstituted 7-arylpyrido[4,3-d]pyrimidines has been developed. The intermediate compounds were isolated and possible mechanism of the reactions is discussed. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.