A Ferrous Center as Reaction Site for Hydration of a Nitrile Group into a Carboxamide in Mild Conditions
作者:Nasser K. Thallaj、Juliette Przybilla、Richard Welter、Dominique Mandon
DOI:10.1021/ja710560g
日期:2008.2.1
Mild conversion of the nitrile substituent into an amide functional group is observed upon coordination of CNTPA [CNTPA = (6-cyano 2-pyridylmethyl)bis(2-pyridylmethyle)amine] to FeCl2 followed by reaction with water. The crystal structure of CNTPAFeCl2 is reported and reveals that the nitrile group does not coordinate but is activated in the vicinity of the ferrous center. Upon treatment with water
在将 CNTPA [CNTPA = (6-氰基 2-吡啶基甲基)双 (2-吡啶基甲基) 胺] 配位为 FeCl 2 然后与水反应后,观察到腈取代基温和地转化为酰胺官能团。CNTPAFeCl2 的晶体结构被报道并表明腈基不配位但在亚铁中心附近被激活。在厌氧条件下用水处理后,CNTPAFeCl2 转化为 H2NCOTPAFeCl2,[H2NCOTPA = (6-carboxamido 2-pyridylmethyl)bis(2-pyridylmethyle)amine],报告了其 X 射线晶体结构。新的配体 H2NCOTPA 可以很容易地通过解络获得。