On the stabilization of the syn-rotamer of amino acid carbamate derivatives by hydrogen bonding

被引:67
作者
MarcoviciMizrahi, D [1 ]
Gottlieb, HE [1 ]
Marks, V [1 ]
Nudelman, A [1 ]
机构
[1] BAR ILAN UNIV,DEPT CHEM,IL-52900 RAMAT GAN,ISRAEL
关键词
D O I
10.1021/jo961446u
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The syn-rotamers of carbamate derivatives of alpha-amino acids are shown to be stabilized by the formation of H-bond complexes with carboxylic acid moieties in solution. This effect is, as expected, concentration and temperature dependent. Thermodynamic parameters (both Delta G degrees and Delta G double dagger) for N-Boc-alanine were determined by NMR in the +/-60 degrees C range.
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收藏
页码:8402 / 8406
页数:5
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