Kinetic study of the reactions of<i>p</i>-nitrophenyl acetate and<i>p</i>-nitrophenyl benzoate with oximate nucleophiles
作者:Shuchi Tiwari、Sancheeta Kolay、Kallol K. Ghosh、Kamil Kuca、Jan Marek
DOI:10.1002/kin.20363
日期:2009.1
The reactions of p‐nitrophenyl acetate (PNPA) and p‐nitrophenyl benzoate (PNPB) with α‐nucleophile oximates, that is, butane 2,3‐dione monoximate, pralidoximate, and other oximates have been studied in the presence of different cationic surfactants. The first‐order rate constant increases with increasing surfactant concentration. The extent of acceleration is dependent on the head group structure of
在不同阳离子表面活性剂存在下,研究了乙酸对硝基苯酯(PNPA)和对硝基苯甲酸苯酯(PNPB)与α-亲核肟酸酯的反应,即2,3-二酮丁烷单肟酸酯,对羟基苯甲酸酯和其他肟酸酯的反应。 。一级速率常数随表面活性剂浓度的增加而增加。加速程度取决于表面活性剂的头基结构。在较高的表面活性剂浓度下,PNPA对所有亲核试剂的反应性均比PNPB高。©2008 Wiley Periodicals,Inc.国际化学杂志Kinet 41:57–64,2009