Facile oxidative conversion of alcohols to esters using molecular iodine
作者:Naoshi Mori、Hideo Togo
DOI:10.1016/j.tet.2005.03.097
日期:2005.6
A simple, efficient, and high-yield procedure for the oxidative conversion of alcohols to various types of esters and ketones, with molecular iodine and potassium carbonate was successfully carried out.
Reaction of 1-adamantyl cation with carbon monoxide in the presence of adamantane and trifluoromethanesulfonic acid: a convenient route to 3,4-homoadamantanediol
ic acid (triflic acid) and adamantane affords 3-hydroxy-4-homoadamantyl l-adamantanecarboxylate (2) in 70% yield under appropriate conditions. Among various l-adamantyl cation precursors tested, l-adamantyl trifluoromethanesulfonate (triflate) and methanesulfonate (mesylate) have given the best, comparable results. As to the acid catalyst, fluorosulfonic acid is less effective than triflic acid, and
The reaction of 1-adamantyl triflate (1) with carbonmonoxide and adamantane catalyzed by triflic acid affords 3-hydroxy-4-homoadamantyl 1-adamantanecarboxylate (2) as a major product, which is easily converted to 3,4-homoadamantanediol (5) — a promising starting material for 3,4-bifunctional homoadamantane derivatives.