Kinetically and thermodynamically controlled synthesis of 2,6-disubstituted cyclohexanone semicarbazones. A molecular mechanics study of a1,3-strai
作者:Assumpta Castello、Carlos Jaime、Jorge Marquet、Marcial Moreno-Mañas
DOI:10.1016/s0040-4020(01)91400-0
日期:1985.1
semicarbazones has allowed the determination of the preferred conformers. The results agree with MM results on model hydrocarbons. Finally, a MM study of hydrocarbon models for the antibiotics isocycloheximide, cycloheximide and neocycloheximide points out to a decrease in stability on going from the former to the later, in agreement with the reported experimental results.
通过分子力学计算,对不同取代的亚甲基环己烷(分别为5.46–6.75、1.03和0.71 )评估了Me-Me,H-Me和Me-H A 1,3菌株的合理值。还已经计算了亚甲基环己烷的椅子到椅子倒置势垒。描述了用于2,6-二烷基环己酮的酰基hydr的热力学和动力学制备的方法。的A PMR分析和-2,6-二甲基环己酮半咔唑酮允许确定优选的构象异构体。该结果与关于模型碳氢化合物的MM结果一致。最后,对抗生素异环己酰亚胺,环己酰亚胺和新环己酰亚胺的烃模型进行的MM研究指出,从前者到后者的稳定性降低,与已报道的实验结果一致。