Conformational studies of ortho-substituted benzaldehyde chromium tricarbonyl complexes

被引:13
作者
Pache, S [1 ]
Romanens, P [1 ]
Kündig, EP [1 ]
机构
[1] Univ Geneva, Dept Organ Chem, CH-1211 Geneva 4, Switzerland
关键词
D O I
10.1021/om0206397
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The syn/anticonformational equilibrium of o-substituted benzaldehyde chromium tricarbonyl complexes was studied by CD and H-1 NMR (NOE). The preferred conformation of the o-methyl-, o-methoxy-, and o-iodobenzaldehyde complexes is anti, while those of the o-trimethyltin and o-trimethylsilyl benzaldehyde complexes is syn. The optical rotation values of (o-trimethylsilyl benzaldehyde)Cr(CO)(3) ((1S)-2d) vary from -174 (in ethanol) to +108 (in chloroform).
引用
收藏
页码:377 / 380
页数:4
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