钌
化学
三苯基膦
腈
乙腈
药物化学
酒
催化作用
分子
立体化学
有机化学
作者
Elizaveta Kossoy,Yael Diskin‐Posner,Gregory Leitus,David Milstein
标识
DOI:10.1002/adsc.201100672
摘要
Abstract The complex bis(acetonitrile)bis(triphenylphosphine)ruthenium(II) sulfate [Ru(PPh 3 ) 2 (NCCH 3 ) 2 (SO 4 )], fully characterized spectroscopically and by a single crystal X‐ray study, catalyzes at 110 °C the direct transformation of primary alcohols to the corresponding acetals with liberation of molecular hydrogen. The formation of acetals proceeds via direct substitution of the hydroxy group of the hemiacetal intermediate by an alcohol molecule. The closely related bis(triphenylphosphine)ruthenium(II) acetate [Ru(PPh 3 ) 2 (OAc) 2 ] catalyzes the conversion of primary alcohols to the corresponding esters rather than acetals.
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