Hydroxylation of olefins using molecular oxygen via alkylboronic esters
摘要:
Alkylboronic esters derived from olefins undergo a hydroxylation in the presence of triethylamine and molecular oxygen. Alcohols were obtained in good to excellent yields without alkaline treatment of the boronate ester intermediates. Radical-clock experiments allowed the comparison between radical and polar reaction paths. (C) 2001 Elsevier Science Ltd. All rights reserved.
Bis(pyridine)iodonium Tetrafluoroborate (IPy2BF4): A Versatile Oxidizing Reagent
作者:José Barluenga、Francisco González-Bobes、Marcelo C. Murguía、Sreenivasa R. Ananthoju、José M. González
DOI:10.1002/chem.200400136
日期:2004.9.6
The use of bis(pyridine)iodoniumtetrafluoroborate (IPy(2)BF(4)) as an oxidizing agent towards different types of alcohols is reported. The observed reactivity involves different reaction pathways, as a function both of the structures of the starting materials and of the experimental conditions. Interestingly, the title iodine-containing compound is capable of a tuneable reaction with simple cycloalkanols
Hydroxylation of olefins using molecular oxygen via alkylboronic esters
作者:Christine Cadot、Peter I Dalko、Janine Cossy
DOI:10.1016/s0040-4039(00)02337-6
日期:2001.2
Alkylboronic esters derived from olefins undergo a hydroxylation in the presence of triethylamine and molecular oxygen. Alcohols were obtained in good to excellent yields without alkaline treatment of the boronate ester intermediates. Radical-clock experiments allowed the comparison between radical and polar reaction paths. (C) 2001 Elsevier Science Ltd. All rights reserved.