Synthesis of Chiral β-Iodo- and Vinylorganophosphorus(V) Compounds by Fragmentation of Carbohydrate Anomeric Alkoxyl Radicals
作者:Daniel Hernández-Guerra、María S. Rodríguez、Ernesto Suárez
DOI:10.1021/ol302939z
日期:2013.1.18
synthesis of chiral vinylphosphonate and vinylphosphine oxide carbohydrate derivatives has been developed using the anomeric alkoxyl radical fragmentation reaction as the key step. The synthetic sequence proceeded via β-iodophosphonate and β-iodophosphine oxide intermediates, which may be interesting synthons for the introduction of phosphorus into organic molecules. These vinylphosphonates could be easily
Fragmentation of Carbohydrate Anomeric Alkoxyl Radicals: Synthesis of Chiral Polyhydroxylated β-Iodo- and Alkenylorganophosphorus(V) Compounds
作者:Daniel Hernández-Guerra、María S. Rodríguez、Ernesto Suárez
DOI:10.1002/ejoc.201402387
日期:2014.8
A direct approach to β-iodophosphonates and β-iodophosphine oxides from 2,3-dideoxy-3-phosphoryl carbohydrate derivatives has been achieved by using the anomeric alkoxyl radical 1,2-fragmentation protocol. The reaction has been conducted on carbohydrate derivatives under mild conditions with (diacetoxyiodo)benzene and molecular iodine. Subsequent dehydroiodination afforded the corresponding vinylphosphonates