Synthesis of Fluoroalkylated Dihydroazolo[1,5-a]pyrimidines and Their Ring-Chain Isomerism
作者:Marina V. Goryaeva、Yanina V. Burgart、Victor I. Saloutin、Elena V. Sadchikova、Evgeny N. Ulomskii
DOI:10.3987/com-08-11524
日期:——
polyfluoroalkylated dihydroazolo[1,5-a]pyrimidines. The latter are subject to ring-chain isomerisation in solutions depending on the solvent and the "length" of the fluoroalkyl substituent to yield ethyl 3-polyfluoroalkyl-3-oxo-2-[(azol-3-yl)aminomethylidene]propionates via opening of the heterocycle at the C-N bond. Dehydration of dihydroazolo[1,5-a]pyrimidine were realized.