The <sup>3</sup><i>J</i><sub>CCNP</sub> Coupling Constants of Pentacoordinate Spirophosphorane Derivatives: As a Method to Assign Relative Configuration
作者:Shuxia Cao、Zhongfei Zhou、Wang Dai、Pei Zhao、Yanchun Guo、Yufen Zhao
DOI:10.1080/10426507.2014.991824
日期:2015.6.3
pentacoordinate spirophosphorane diastereoisomers, while the 2JCNP value remained almost unchanged. The 3JCCNP value of the spirophosphorane with ΛP configuration at phosphorus was obviously larger than that with ΔP configuration. The rule, 3JCCNP (ΛP) > 3JCCNP (ΔP), for pentacoordinate spirophosphorane diastereoisomers was used to assign the configurations of new alkoxy spirophosphorane derivatives,
图形摘要 摘要 发现磷-碳偶联常数 3JCCNP 对五配位螺正膦非对映异构体的相对构型敏感,而 2JCNP 值几乎保持不变。ΛP构型的螺正膦在磷处的3JCCNP值明显大于ΔP构型的。利用五配位螺正膦非对映异构体的3JCCNP(ΛP)>3JCCNP(ΔP)规则对新型烷氧基螺正膦衍生物进行构型分配,取得了满意的结果。结果表明,偶联常数 3JCCNP 可作为五配位螺正膦衍生物构型的可靠探针。