| Literature DB >> 16209625 |
Chien-Tien Chen1, Yogesh S Munot.
Abstract
A diverse array of oxometallic species were examined as catalysts for a test direct condensation of benzoic acid and 2-phenylethanol in 1:1 stoichiometry. Besides group IVB MOCl2-xH2O and TiOX2-xH2O, group VB VOCl2-xTHF and group IVB TiO(acac)2 were found to be the most efficient and water-tolerant catalysts for the test reaction. The new neutral catalytic protocol with the optimal TiO(acac)2 tolerates many stereo/electronic structural variations in both (di)acid (1 degree -3 degrees alkyl and aryl) and (di)alcohol (1 degree, 2 degrees alkyl, and aryl) components with high chemoselectivity.Entities:
Year: 2005 PMID: 16209625 DOI: 10.1021/jo051337s
Source DB: PubMed Journal: J Org Chem ISSN: 0022-3263 Impact factor: 4.354