Efficient Iron-Catalyzed Direct β-Alkylation of Secondary Alcohols with Primary Alcohols
作者:Jian Yang、Xin Liu、Da-Li Meng、Hong-Yan Chen、Zhi-Hui Zong、Ting-Ting Feng、Kai Sun
DOI:10.1002/adsc.201000907
日期:2012.2
β-alkylation of secondary alcohols with primaryalcohols is described. In the presence of the commerciallyavailable iron catalyst (ferrocenecarboxaldehyde, 1b) and a catalytic amount of base, the reactions give β-alkylated higher alcohols in high yields in the absence of any sacrificial agents (hydrogen acceptors or hydrogen donors) and nitrogen or phosphorus ligands. For the firsttime, iron is employed
RuCl2(DMSO)4 catalyzes the β-alkylation of secondary alcohols with primary alcohols through a hydrogen autotransfer process
作者:Ricardo Martínez、Diego J. Ramón、Miguel Yus
DOI:10.1016/j.tet.2006.07.012
日期:2006.9
The electrophilic beta-alkylation of secondary alcohols with primary alcohols is accomplished by a hydrogen autotransfer process catalyzed by RUCl2(DMSO)(4). The reaction can produce either simple alkylated secondary alcohols or alpha,beta-unsaturated ketones with good to excellent results just by choosing the appropriate starting secondary alcohol (methyl or longer chain secondary alcohol, respectively), as well as quinolines (by using 2-aminobenzyl alcohol). (c) 2006 Elsevier Ltd. All rights reserved.