Cyclizations and intermolecular additions of alkoxycarbonyloxy radicals from N-hydroxypyridine-2-thione carbonates
摘要:
Alkoxycarbonyloxy radicals from allyl and homoallyl alcohols cyclize in an exo fashion to give, respectively, 3-substituted 1,2-diol carbonates and 4-substituted 1,3-diol carbonates whereas simple alkoxycarbonyloxy radicals add intermolecularly to ethyl vinyl ether to give, ultimately, carbonates of glycolaldehyde derivatives.
Cyclizations and intermolecular additions of alkoxycarbonyloxy radicals from N-hydroxypyridine-2-thione carbonates
作者:Martin Newcomb、M Udaya Kumar、Jean Voivin、Elisabeth Crépon (née daSilva)、Samir Z Zard
DOI:10.1016/s0040-4039(00)71214-7
日期:1991.1
Alkoxycarbonyloxy radicals from allyl and homoallyl alcohols cyclize in an exo fashion to give, respectively, 3-substituted 1,2-diol carbonates and 4-substituted 1,3-diol carbonates whereas simple alkoxycarbonyloxy radicals add intermolecularly to ethyl vinyl ether to give, ultimately, carbonates of glycolaldehyde derivatives.
Reduction of activated thiopyridyl compounds by zinc metal
作者:Jean Boivin、Jean-Yves Lallemand、Andreas Schmitt、Samir Z. Zard
DOI:10.1016/0040-4039(95)01497-6
日期:1995.10
Starting from thiopyridyl compounds bearing a radical stabilizing group in α-position to the thiopyridyl moiety, the thiopyridyl group can be easily removed upon reduction by zinc metal in acetic acid.