The reaction of optically active α-aminocarboxylic acid hydrazides with triethyl orthoesters

Add time:09/04/2019    Source:sciencedirect.com

New derivatives of 2-(1-amino-1-phenylmethyl)-1,3,4-oxadiazole and 1,2,4-triazin-6-one were synthesised in the reactions of optically active α-aminocarboxylic acid hydrazides and triethyl orthoesters in xylene. The electronic and steric effects of substituents at the α position influencing the formation of five- or six-membered products are discussed.

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