Dehydrogenative Addition of Aldehydes to a Mixed NHC-Osmium-Phosphine Hydroxide Complex: Formation of Carboxylate Derivatives
收藏NIAID Data Ecosystem2026-03-09 收录
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The addition of the O–H bond of [OsH(OH)(CPh)(IPr)(PiPr3)]OTf (1; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolylidene, OTf = CF3SO3) to the C–Hα bond of aldehydes is reported. Complex 1 reacts with n-propanal, acrolein, cinnamaldehyde, and benzaldehyde to give the carboxylate-hydride-alkylidyne derivatives [OsH(κ2-O2CR)(CPh)(IPr)(PiPr3)]OTf (R = Et (2), CHCH2 (3), CHCHPh (4), Ph (5)) and H2. Complexes 2, 4, and 5 afford the alkylidenes [Os(κ2-O2CR)(CO)(CHPh)(IPr)(PiPr3)]OTf (R = Et (6), CHCHPh (7), Ph (8)) under a CO atmosphere.
创建时间：
2016-07-05
