asymmetric hydrogenation;
chiral alcohols;
chiral pincer ligands;
ketones;
manganese;
ASYMMETRIC TRANSFER HYDROGENATION;
C BOND FORMATION;
P-N-P';
IRON(II) COMPLEXES;
CATALYTIC-HYDROGENATION;
EFFICIENT;
ALCOHOLS;
AMINES;
ALKYLATION;
REDUCTION;
D O I:
10.1002/anie.201705471
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A new chiral manganese PNP pincer complex is described. The asymmetric hydrogenation of several prochiral ketones with molecular hydrogen in the presence of this complex proceeds under mild conditions (30-40 degrees C, 4 h, 30 bar H-2). Besides high catalytic activity for aromatic substrates, aliphatic ketones are hydrogenated with remarkable selectivity (e.r. up to 92:8). DFT calculations support an outer sphere hydrogenation mechanism as well as the experimentally determined stereochemistry.
机构:
E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R ChinaE China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China
Li, Xiaohong
Wu, Peng
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机构:
E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R ChinaE China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China