Saegusa Oxidation of Enol Ethers at Extremely Low Pd-Catalyst Loadings under Ligand-free and Aqueous Conditions: Insight into the Pd(II)/Cu(II)-Catalyst System
作者:Quan Zhu、Yunsong Luo、Yongyan Guo、Yushun Zhang、Yunhai Tao
DOI:10.1021/acs.joc.0c02987
日期:2021.4.16
system of Saegusa oxidation, which converts enolethers to the corresponding enals with a number of diverse substrates at extremely low catalyst loadings (500 mol ppm) under ligand-free and aqueous conditions, is described. Its synthetic utility was demonstrated by large-scale applications of the catalyst system to important nature molecules. This work allows Saegusa oxidation to become a highly practical
A New Method for the One-Step Synthesis of α,β-Unsaturated Carbonyl Systems from Saturated Alcohols and Carbonyl Compounds
作者:K. C. Nicolaou、Y.-L. Zhong、P. S. Baran
DOI:10.1021/ja001825b
日期:2000.8.1
oxidation cascades (entry 5, three oxidations in one pot). A range of small (Scheme 1, and entries 6-8 and 14-16, Table 1) and large (entries 9 -13, Table 1) ring ketones and alcohols are easily and controllably (Scheme 1 and entries 8, 10, and 13, Table 1) oxidized. Substitution at the Rand â-sites (R, entry 14;â, entries 15 and 18) of the carbonyl system does not hinder the reaction, nor does it diminish
Modulation of the Reactivity Profile of IBX by Ligand Complexation: Ambient Temperature Dehydrogenation of Aldehydes and Ketones to α,β-Unsaturated Carbonyl Compounds