A NEW SYNTHETIC ROUTE TO FUNCTIONALLY-SUBSTITUTED (ETA(5)-CYCLOPENTADIENYL)DICARBONYLIRIDIUM COMPOUNDS

被引:20
作者
BLAIS, MS
RAUSCH, MD
机构
[1] UNIV MASSACHUSETTS,DEPT CHEM,AMHERST,MA 01003
[2] US MIL ACAD,DEPT CHEM,W POINT,NY 10996
关键词
IRIDIUM; SUBSTITUTED (CYCLOPENTADIENYL)DICARBONYLIRIDIUM COMPOUNDS; SYNTHESIS; C-13 NMR SPECTRA; HAMMETT SUBSTITUENT PARAMETERS;
D O I
10.1016/0022-328X(95)05627-2
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A series of functionally substituted (eta(5)-cyclopentadienyl)dicarbonyliridium compounds have been prepared from reactions of the corresponding substituted cyclopentadienyl-sodium, -lithium, or -thallium reagents with chlorodicarbonyl(pyridine)iridium. Ring-substituted compounds synthesized by this route include chloro, benzyl, pentabenzyl, acetyl, carbomethoxy, methyl, benzoyl, trimethylsilyl, cyano, dimethylamino, tetraphenyl, dimethylaminoethyl, (tetramethyl)dimethylaminoethyl, methoxyethyl and pentamethyl. The symmetric and asymmetric carbonyl stretching frequencies as well as the C-13 NMR chemical shifts of the carbonyl substituents have been correlated with various Hammett substituent parameters.
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页码:1 / 8
页数:8
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