Silica-supported polyphosphoric acid in the synthesis of 4-substituted tetrahydroisoquinoline derivatives.

Abstract

We report herein an application of an α-amidoalkylation reaction, as an alternative efficient synthesis of 4-aryl- and 4-methyl-1,2,3,4-tetrahydroisoquinoline derivatives. The amides required for this purpose would result from reaction of aminoacetaldehyde dimethylacetal with different substituted benzenes in polyphosphoric acid, followed by acylation of… (More)
DOI: 10.3390/molecules18021869

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