Preparation and chemistry of some 1,5-diphenyl-1λ<sup>4</sup>,2,4-thiadiazine 1-oxides
作者:Stuart D. Jones、Peter D. Kennewell、W. Roger Tulley、Robert Westwood、Peter G. Sammes
DOI:10.1039/p19900000447
日期:——
General methods for the preparation of 3-substituted 5-aryl-1λ4,2,4-thiadiazine 1-oxides are described. The chemical properties of these new heterocyclic systems have been explored, for example their susceptibility to electrophilic and nucleophilic attack. The 3-bromomethyl derivative can undergo a base-catalysed ring expansion to a seven-membered thiadiazepine; some initial studies at generating fused
用于制备一般方法3取代的5-芳基1λ 4,2,4-噻二嗪1-氧化物进行说明。已经研究了这些新杂环系统的化学性质,例如它们对亲电子和亲核攻击的敏感性。3-溴甲基衍生物可经碱催化扩环成七元噻二氮杂;还报道了一些从这些杂环前体产生稠合双环系统的初步研究。