Die sterischen Bedingungen der Fragmentierungsreaktion. II. Teil. Stereoisomere 3-Aminocyclohexyl-p-toluolsulfonate. Fragmentierungsreaktionen, 15. Mitteilung
作者:U. Burckhardt、C. A. Grob、H. R. Kiefer
DOI:10.1002/hlca.19670500130
日期:——
The solvolytic fragmentation of cis- and of trans-3-amino-cyclohexyl p-toluenesulfonates 8a and 9a and the corresponding N, N-dimethyl derivatives 8b and 9b has been studied. In 80% ethanol the cis-amino-tosylates 8a and 8b react faster than the homomorphous cis-3-alkyl-cyclohexyl tosylates 11a and 11b to yield fragmentation product exclusively or predominantly. The synchronous mechanism predictable
研究了顺式和反式-3-氨基-环己基对甲苯磺酸盐8a和9a以及相应的N,N-二甲基衍生物8b和9b的溶剂分解。在80%的乙醇中,顺式-氨基-甲苯磺酸盐8a和8b的反应比同型的顺式-3-烷基-环己基甲苯磺酸盐11a和11b反应更快,从而仅或主要产生片段化产物。因此指出了基于立体声电子学可预测的同步机制。