Nitrous oxide as a nucleophile in the formation of a new reactive intermediate from benzyl cations in the solvolysis of benzyl azoxytosylate
作者:H. Maskill、William P. Jencks
DOI:10.1039/c39840000944
日期:——
Rate and product analytical results of solvolysis of benzylazoxytosylate in 1 : 1 (v/v) trifluoroethanol: water require two product-forming routes: one involves a long-lived intermediate (formed frombenzylcations and nitrousoxide) which is trappable by dilute nucleophiles and bases; the other involves either a very short-lived intermediate (the benzylcation) which is not capable of being intercepted
Concurrent solvolytic and non-solvolytic reactions of benzyl azoxytoluene-p-sulphonate in aqueous trifluoroethanol containing bases: an unprecedented mechanistic duality
作者:H. Maskill
DOI:10.1039/c39860001433
日期:——
Benzylazoxytoluene-p-sulphonate (1) undergoes heterolytic fragmentation on solvolysis with the anticipated electron flow from benzyl towards the toluene-p-sulphonate leaving group, but suffers concurrent nucleophilic attack by basic solutes at the sulphur atom of the toluene-p-sulphonate moiety with consequent heterolysis and electron flow in the opposite sense, the benzylazoxy group now being the
苄azoxytoluene- p -磺酸盐(1)经历溶剂分解上异裂碎片与来自苄朝向甲苯预期电子流p -磺酸盐离去基团,但遭受在甲苯中的硫原子通过碱性溶质并发亲核攻击p -磺酸盐因此,杂合和电子流动的方向相反,苄基氮氧基现在是核试剂。
Deamination via nitrogen derivatives of sulfonic acids: N-alkyl-N-nitroso-4-toluenesulfonamides, N-alkyl-N-nitro-4-toluenesulfonamides, and N-alkyl-N'-(4-toluenesulfonyloxy)diimide N-oxides
作者:Emil H. White、Charles P. Lewis、Max A. Ribi、Thomas J. Ryan
DOI:10.1021/jo00316a014
日期:1981.1
WHITE E. H.; LEWIS C. P.; RIBI M. A.; RYAN T. J., J. ORG. CHEM., 1981, 46, NO 3, 552-558
作者:WHITE E. H.、 LEWIS C. P.、 RIBI M. A.、 RYAN T. J.