Diamidophosphites with remote P*-stereocentres and their performance in Pd-catalyzed enantioselective reactions

被引:22
|
作者
Gavrilov, Konstantin N. [1 ]
Zheglov, Sergey V. [1 ]
Gavrilov, Vladislav K. [1 ]
Chuchelkin, Ilya V. [1 ]
Novikov, Ivan M. [1 ]
Shiryaev, Alexei A. [1 ]
Volov, Alexandr N. [2 ]
Zamilatskov, Ilya A. [2 ]
机构
[1] Ryazan State Univ, Dept Chem, Ryazan 390000, Russia
[2] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia
关键词
ASYMMETRIC 3+2 CYCLOADDITION; MONODENTATE DIAMIDOPHOSPHITES; ALLYLIC SUBSTITUTION; LIGANDS; APPLICATION; PHOSPHORUS LIGANDS; EFFICIENT LIGANDS; PHOSPHINE LIGANDS; MODULAR APPROACH; HYDROGENATION; ALLYLATION;
D O I
10.1016/j.tetasy.2014.06.010
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Diamidophosphite ligands based on 1,1'-bis(hydroxymethyl)ferrocene or N-1,N-2-bis((S)-1-hydroxy-3,3-dimethylbutan-2-yl)oxalamide and bearing 1,3,2-diazaphospholidine rings with stereogenic phosphorus atoms were obtained. The use of these ligands provides up to 96% ee in Pd-catalyzed asymmetric allylations of (E)-1,3-diphenylallyl acetate, up to 70% ee in Pd-catalyzed desymmetrizations of N,N'-ditosyl-meso-cyclopent-4-ene-1,3-diol bis-carbamate and up to 80% ee in Pd-catalyzed allylic alkylations of cinnamyl acetate with ethyl 2-oxocyclohexane-1-carboxylate. Results obtained with a diamidophosphite containing an oxalamide framework show the considerable potential of such ligands in enantioselective catalysis. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1116 / 1121
页数:6
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