Formation of an Iodide-Bridged Diruthenium Complex from [(η5-Ph4C4COH)(CO)2RuI] and [(Ph4C4CO)(CO)2Ru]2: An Efficient Catalyst for Alcohol Oxidation with Ag2O
摘要:
Iodide-bridged diruthenium complexes [(n(5) -2.5-R-2-3.4-Ph2C4COH) (CO)(2) Ru-(mu-I)-Ru(CO)(2)(n(4)-2.5-R-2-3.4-Ph2C4CO)] (6a, R=ph; 6b, R=Me) were formed from the reaction of (n(5-)2.5-3.4-Ph2C4COH)(CO)(2) RuI (2c, R=Ph;2d, R=Me) with [(2.5-R(2-)3.4-Ph2C4CO)(CO)(2)Ru](2) (7a, R=Ph; 7b, R=Me). The complexes exhibited a high catalytic activity for the oxidation of alcohols with silver oxide at room temperature.
Facile Synthesis of (η<sup>5</sup>-Ph<sub>4</sub>C<sub>4</sub>COH)(CO)<sub>2</sub>RuCl and Catalytic Oxidation of Alcohols with Chloroform
作者:Hyun Min Jung、Jun Ho Choi、Soon Ok Lee、Yu Hwan Kim、Jung Hye Park、Jaiwook Park
DOI:10.1021/om020516m
日期:2002.12.1
A hydroxycyclopentadienyl ruthenium chloride, (eta(5)-Ph4C4COH)(CO)(2)RuCl (2), is formed quantitatively by heating the Shuo complex, [(eta(5)-Ph4C4CO)](2)H}-Ru-2(CO)(4)(mu-H) (1) (1), in chloroform containing a stoichiometric amount of ethanol. Alcohols are oxidized by the use of 1 or 2 as the catalyst in chloroform with sodium carbonate. Secondary alcohols and primary diols are oxidized selectively to give ketones and lactones, respectively, in excellent yields.