【摘要】 测定了１９个２－硫代－２－（二乙基氨基）－３－取代苯甲（磺）酰基－１，３，２－氧氮磷杂环戊烷的１３ＣＮＭＲ参数．在苯甲酰类化合物中，邻位有非氢取代基时，非环的２Ｊ（ＰＮＣ）随温度而变化（０～６．１Ｈｚ），这是因羧基与苯环空间位置（构象）随温度变化所致．更多还原

【Abstract】 The 13￣C NMR speatral parameters of 2 - Thiono - 2- diethylamino - 3 - substitutedbenzoyl （phenylsulfonyl） - 1,3,2- oxazaphospholidines have been determined in CDCl₃solutions. For the first time a two - bond temperature- dependent 13￣C - 31￣P nuclear spin coupling was observed for the N- diethylamino carbon in O -substituted benzoy1- 1,3,2-oxazaphospholidines, because the steroconformation of the carbonyl group and the benzene ring varied with temperature.更多还原