Pure Appl. Chem., 2008, Vol. 80, No. 4, pp. 695-706
http://dx.doi.org/10.1351/pac200880040695
Heterocycles based on the chemistry of alkylidenecyclopropanes and (aza)-cyclopropenes
Abstract:
Alkylidenecyclopropyl, cyclopropenyl, or azacyclocyclopropenyl ketones or carboxylates have been demonstrated to be versatile starting materials for the synthesis of oxygen- and/or nitrogen-containing heterocycles. The reactivities and regioselectivities may be nicely controlled by subtle choice of the catalysts and reaction condition parameters.
Keywords
alkylidenecyclopropanes; catalysis; cyclopropenes; heterocycles; ring-opening cyclization.