Convenient Divergent Strategy for the Synthesis of TunePhos-Type Chiral Diphosphine Ligands and Their Applications in Highly Enantioselective Ru-Catalyzed Hydrogenations
作者:Xianfeng Sun、Le Zhou、Wei Li、Xumu Zhang
DOI:10.1021/jo702068w
日期:2008.2.1
convenient, divergent strategy for the synthesis of a series of modular and fine-tunable C3-TunePhos-type chiral diphosphineligands and their applications in highlyefficient Ru-catalyzed asymmetrichydrogenations were explored. Up to 97 and 99% ee values were achieved for the enantioselective synthesis of β-methyl chiral amines and α-hydroxy acid derivatives, respectively.
Highly Enantioselective Hydrogenation of α-Keto Esters Catalyzed by Ru-Tunephos Complexes
作者:Xumu Zhang、Chun-Jiang Wang、Xianfeng Sun
DOI:10.1055/s-2006-932461
日期:——
Various enantiomerically pure α-hydroxy esters were synthesized by asymmetric hydrogenation of α-keto esters catalyzed by Ru-C n -Tunephos complex. Up to 97.1% ee has been achieved for both α-aryl and α-alkyl substituted α-keto esters.
通过由Ru-C n -Tunephos 配合物催化的α-酮酯的不对称氢化合成了各种对映体纯α-羟基酯。α-芳基和 α-烷基取代的 α-酮酯的 ee 高达 97.1%。
Chenevert, Robert; Letourneau, Martin, Canadian Journal of Chemistry, 1990, vol. 68, p. 314 - 316
作者:Chenevert, Robert、Letourneau, Martin
DOI:——
日期:——
Catalytic Asymmetric Reaction with Water: Enantioselective Synthesis of α-Hydroxyesters by a Copper–Carbenoid OH Insertion Reaction
作者:Shou-Fei Zhu、Chao Chen、Yan Cai、Qi-Lin Zhou
DOI:10.1002/anie.200704651
日期:2008.1.18
CHENEVERI, ROBERT;LETOURNEAU, MARIIN, CAN. J. CHEM., 68,(1990) N, C. 314-316