Mao J, Baker D C
Department of Chemistry, University of Tennessee, Knoxville 37996-1600, USA.
Org Lett. 1999 Sep 23;1(6):841-3. doi: 10.1021/ol990098q.
[formula: see text] A chiral rhodium complex, (R)-CpRhCl[(1S,2S)-p-TsNCH(C6H5)CH(C6H5)NH2] (1a, (S,S)-CpRhClTsDPEN), generated from [Cp*RhCl2]2 and (1S,2S)-N-p-toluenesulfonyl-1,2-diphenylethylenediamine [(S,S)-TsDPEN], and its enantiomer 1b were found to provide superior catalysts for the rapid, high-yielding, asymmetric transfer hydrogenation of some heterocyclic imines, using an HCO2H-Et3N azeotrope as the hydrogen source.
[化学式：见正文] 由[CpRhCl₂]₂和(1S,2S)-N-对甲苯磺酰基-1,2-二苯基乙二胺[(S,S)-TsDPEN]生成的手性铑配合物(R)-CpRhCl[(1S,2S)-p-TsNCH(C₆H₅)CH(C₆H₅)NH₂] (1a, (S,S)-Cp*RhClTsDPEN)及其对映体1b，被发现是一些杂环亚胺快速、高产率不对称转移氢化反应的优良催化剂，使用HCO₂H-Et₃N共沸物作为氢源。
