GRIGG, RONALD;MONGKOLAUSSAVARATANA, THEERAVAT, J. CHEM. SOC. PERKIN TRANS.,(1988) 541-544
作者:GRIGG, RONALD、MONGKOLAUSSAVARATANA, THEERAVAT
DOI:——
日期:——
XY–ZH systems as potential 1,3-dipoles. Part 9. Aza-allyl anion precursors from the reaction of (1,3-dioxoindan-2-ylidene)malononitrile with α-amino acids and their methyl esters
作者:Ronald Grigg、Theeravat Mongkolaussavaratana
DOI:10.1039/p19880000541
日期:——
Glycine, valine, and α-aminoacidesters react with (1,3-dioxoindan-2-ylidene)malononitrile (1) by a Michael addition–elimination mechanism with replacement of one cyano group by the α-aminoacid or α-aminoacidester entity. These adducts undergo a triethylamine-catalysed stereospecific cycloaddition to N-methylmaleimide at room temperature with loss of the remaining cyano group in > 70% yield. The