The Micelle-promoted Selective Hydrolysis of Anionic and Nonionic Ester Substrates by Hydroxamic Acids and Histidine Derivatives
作者:Ryuichi Ueoka、Hidehiko Matsuura、Syuji Nakahata、Katsutoshi Ohkubo
DOI:10.1246/bcsj.53.347
日期:1980.2
CTAB, and OTAC) surfactants at pH 7.45. The present reaction was characterized by the selectively efficient hydrolysis of the same substrate of S6− or S10 by the comicellar Cm (m=8, 10, or 12)–CTAB (or OTAC) or LauHis–CTAB (or OTAC) catalysts. Relevant factors to such a selective hydrolysis of a specific substrate by the comicellar catalysts were discussed by taking notice of the electrostatic-charge-attraction
在异羟肟酸 (C6-C12) 和组氨酸衍生物 (AcetHis 和 LauHis) 催化下,阴离子 3-硝基-4-酰氧基苯甲酸 (S2--S16-) 和非离子对硝基苯甲酸酯 (S2-S16) 底物进行水解含和不含烷基三甲基铵(DTAC、CTAB 和 OTAC)表面活性剂,pH 7.45。本反应的特点是通过 Cm(m=8、10 或 12)-CTAB(或 OTAC)或 LauHis-CTAB(或 OTAC)催化剂选择性有效地水解 S6-或 S10 的相同底物。通过注意静电荷吸引力、空间位阻和疏水相互作用,讨论了与特定底物被蜡状催化剂选择性水解的相关因素。