SYNTHESIS OF A NEW OPTICALLY-ACTIVE TRIPHOSPHINE WITH A NEOPENTANE BACKBONE

被引:19
作者
HEIDEL, H [1 ]
HUTTNER, G [1 ]
ZSOLNAI, L [1 ]
机构
[1] UNIV HEIDELBERG,INST ANORGAN CHEM,D-69120 HEIDELBERG,GERMANY
来源
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1995年 / 50卷 / 05期
关键词
TRIPOD LIGAND; OPTICALLY ACTIVE TRIPHOSPHINE; NEOPENTANE COMPOUND; CHIRAL MALONIC ESTER;
D O I
10.1515/znb-1995-0508
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The resolution of the racemate (BzlOCH(2)) (Me)C(COOH)(COOEt) (+/-)1 is the entry point for the enantioselective synthesis of the key compound 7 (MeC(CH2Cl)(CH2Br) (CH(2)OTfl)). Successive phosphination of 7 furnishes the triphosphine 10 (MeC(CH(2)PPh(2))(CH2DBP)(CH2P(3,5-Me(2)C(6)H(3))(2) in both enantiomeric forms (DBP = dibenzophospholyl). The structures of the precursors (+)8S (MeC(CH(2)PPh(2))(CH2DBP)(CH2Cl)) and (+/-)9 (MeC(CH2Br)(CH2Cl)(CH2DBP)) have been confirmed by X-ray analysis.
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页码:729 / 734
页数:6
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