Formation of N-heterocycles by the reaction of thiols with glyoxamides: exploring a connective Pummerer-type cyclisation
作者:Marc Miller、Johannes C. Vogel、William Tsang、Andrew Merrit、David J. Procter
DOI:10.1039/b816608k
日期:——
The reaction of thiols with glyoxamides provides a convenient method for the generation of thionium ions and the initiation of Pummerer-typereactions. When the glyoxamides contain tethered aromatic nucleophiles, N-heterocycles are formed by a thionium ion cyclisation. The scope and mechanism of the connective Pummerer-type process has been investigated using a range of thiols, Lewis acids and both
Exploring a new, connective Pummerer reaction: formation of oxindoles by the reaction of thiols with glyoxamides
作者:Marc Miller、William Tsang、Andrew Merritt、David J. Procter
DOI:10.1039/b613591a
日期:——
The reaction of a range of thiols with mono- and bis-glyoxamides derived from secondary anilines, triggers a new, connective Pummerer cyclisation process and leads to the formation of oxindoles.