respect to the OH group, using 2-propanol-d8 as solvent with Ru or Os pincer complexes and KOtBu at 30–50 °C. For secondary alcohols incorporation of deuterium at the β position has also been observed. In 2-propanol-d8 the pincer complexes catalyze the simultaneous deuteration and racemization of (S)-1-phenylethanol, the two processes being strictly correlated. For both reactions much the same activity
钳形配合物[MX(CNN)(PP)](M = Ru,Os; X = Cl,OTf; HCNN = 1-(6-芳基
吡啶-2-基)
甲胺; PP =
二膦)已被证明可有效催化两种在碱存在下
酒精的消旋化和
氘化。手性醇已在30–50°C下使用1 mol%的Ru或Os钳状络合物和5 mol%的KO t Bu消旋。2-
丙醇。使用2-
丙醇-d 8作为溶剂与Ru或Os pincer配合物和KO t Bu在30–50°C时,相对于OH基团,伯醇和仲醇可在α位有效地
氘化。对于仲醇,还已经观察到
氘在β位置上的掺入。在2-
丙醇-d 8中,钳状配合物催化同时
氘化和消旋(S)-1-
苯乙醇,这两个过程是严格相关的。对于这两个反应,使用Ru和Os络合物观察到的活性几乎相同。相对于相关化合物[MCl 2(NN)(PP)](N =二齿胺或
吡啶配体)。新的配合物[的MC1(CNN)(PP)](M = RU,合成2,4和Os,6,7