reactions. The activation parameters and the value of the brønsted exponent, β = 0.48, are consistent with a small degree of bonding between the entering amine and the sulfur atom in the transition state. Similarities in the nucleophilic behavior of sulfonyl and carbonyl groups are detected.
测量了1-
甲苯基-3-甲基
咪唑鎓
氯化物与各种胺的反应动力学,以研究酶促反应中磺酰基转移的性质。活化参数和布朗斯台德指数的值β= 0.48,与过渡态时进入的胺和
硫原子之间的键合程度较小相符。检测到磺酰基和羰基的亲核行为相似。