STEREOCHEMISTRY AND CONFORMATION OF AMIDO-PHOSPHONOCYCLOHEXENE DERIVATIVES, ASSIGNED BY NMR AND X-RAY DIFFRACTION ANALYSES
作者:Bernard Tinant、Nathalie Defacqz、Raphaël Robiette、Roland Touillaux、Jacqueline Marchand-Brynaert
DOI:10.1080/10426500490262522
日期:2004.2.1
Stereochemistry (absolute or relative) of four compounds have been established by x-ray diffraction analysis, namely: 3(R)-[4′(R)-(phenyl) oxazolidin-2-one-1-yl]-4(S)-dimethoxyphosphoryl-4-methoxycarbonyl-1-cyclohexene (7), 3(R)-[4′-(R)-(phenyl)-oxazolidin-2-thione-1-yl]-4(S)dimethoxyphosphoryl-4-methoxycarbonyl-1-cyclohexene (8), methyl 1dimethoxyphosphoryl-2-succinimido-3,4-epoxy-cyclohexane-1-carboxylate
通过 X 射线衍射分析确定了四种化合物的立体化学(绝对或相对),即:3(R)-[4'(R)-(苯基) oxazolidin-2-one-1-yl]-4(S )-二甲氧基磷酰基-4-甲氧基羰基-1-环己烯 (7), 3(R)-[4'-(R)-(苯基)-恶唑烷-2-硫酮-1-基]-4(S)二甲氧基磷酰基-4 -甲氧基羰基-1-环己烯 (8)、1-二甲氧基磷酰基-2-琥珀酰亚胺-3,4-环氧-环己烷-1-羧酸甲酯 (9) 和 3-琥珀酰亚胺-4-甲基羰基-5-二甲氧基磷酰基-1-环己烯 (10 )。因此完全证实了从 NMR 分析推导出的环构象。