Microwave-assisted solution phase synthesis of dihydropyrimidine C5 amides and esters

B Desai, D Dallinger, CO Kappe - Tetrahedron, 2006 - Elsevier
Multifunctionalized dihydropyrimidine-5-carboxylic amides and esters are generated in a
multistep sequence integrating a variety of enabling and high throughput technologies such
as automated or parallel microwave synthesis, the use of polymer-supported reagents,
fluorous synthesis and purification strategies, and a continuous flow hydrogenation system.
The key dihydropyrimidine-5-carboxylic acid intermediates are obtained in two steps by
Biginelli multicomponent condensation of benzyl or allyl β-ketoesters with aldehydes and …
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