aldehydes with alcohols as well as dehydrogentive cross-coupling of primary alcohols to produce esters have been developed using a Rh-terpyridine catalyst. The catalyst demonstrates broad substrate scope and good functional group tolerance, affording esters highly selectively. The high chemoselectivity of the catalyst stems from its preference for dehydrogenation of benzylic alcohols over aliphatic ones. Preliminary
已经使用 Rh-三联吡啶催化剂开发了醛与醇的脱氢交叉偶联以及伯醇的脱氢交叉偶联以生产酯。该催化剂表现出广泛的底物范围和良好的官能团耐受性,可高度选择性地提供酯。该催化剂的高化学选择性源于其对苄醇脱氢的偏好优于脂肪醇。初步机理研究表明,活性催化剂是二聚 Rh( II ) 物种,通过涉及金属-基础-金属协同作用的机制进行操作。