CONVENIENT SYNTHESIS OF ALPHA-CHIRAL PLATINUM ALKYLS

被引:14
作者
BERGAMINI, P
COSTA, E
SOSTERO, S
ORPEN, AG
PRINGLE, PG
机构
[1] CNR,CTR FOTOCHIM,I-44100 FERRARA,ITALY
[2] UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,AVON,ENGLAND
关键词
D O I
10.1021/om00055a002
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The platinum complexes [PtX2(eta-2-dppm)] (X = Cl, Br, I) and [PtCl2L2] (L2 = dppe, 2 PPh3, 1,5-cod) react with EtO2CCHN2 to give the racemic monoalkyl complexes [PtX(CHXCO2Et)L2] in high yield. Addition of EtO2CCHN2 to [PtCl2{(-)-diop}] gives a 3:1 mixture of diastereoisomers of [PtCl(CHCICO3Et){(-)-diop}] from which the major isomer is readily separated and crystallized; the X-ray crystal structure reveals that the major isomer has the R configuration at the alpha-carbon atom.
引用
收藏
页码:2989 / 2990
页数:2
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