NISPEN S. P. J. M. VAN; MENSINK C.; LEUSEN A. M. VAN, TETRAHEDRON LETT., 1980, 21, NO 38, 3723-3726
作者:NISPEN S. P. J. M. VAN、 MENSINK C.、 LEUSEN A. M. VAN
DOI:——
日期:——
Use of dilithio-tosylmethyl isocyanide in the synthesis of oxazoles and imidazoles
作者:Simon P.J.M. van Nispen、Cees Mensink、Albert M. van Leusen
DOI:10.1016/s0040-4039(00)78757-0
日期:1980.1
Dilithio-tosylmethyl isocyanide () reacts with the carbonyl of unsaturated esters to form oxazoles, unlike tosylmethyl isocyano monoanion which gives pyrroles by reaction with the conjugated carbon-carbon double bonds. Reaction of with carbon-nitrogen multiple bonds leads to imidazoles, an example of which is the one-step synthesis of imidazo[5,1-a]isoquinoline from isoquinoline. From and pyridine-N-oxide