Prosyanik, A. V.; Fedoseenko, D. V.; Markov, V. I., Journal of Organic Chemistry USSR (English Translation), 1985, vol. 21, # 8, p. 1494 - 1503
作者:Prosyanik, A. V.、Fedoseenko, D. V.、Markov, V. I.
DOI:——
日期:——
Studies on tandem transesterification and intramolecular cycloaddition of nitrones. 2. Sequential bicyclization of α,α-dialkoxycarbonylnitrones with allyl alcohols
s with 1.5 equiv. of allyl alcohols in the presence of 0.1 equiv. of titaniumtetrachloride and molecular sieves 4A causes tandem transesterification, E,Z-isomerization of the nitrone moieties, and intramolecular 1,3-dipolar cycloaddition to furnish bicyclic compound having ester group at the bridge head position. These reactions rarely give double transesterification product due to high reactivity