The Michael-type addition of 1-nitropropene to the N-substituted esters of β-aminocrotonic acid VIIIa and VIIIc leads directly to N-substituted 2,4-dimethyl-4-carbethoxy-pyrroles IVa and IVd in good yields.
Reaction of nitronium fluoroborate with olefins in acetonitrile
作者:Monte L. Scheinbaum、Martin Dines
DOI:10.1021/jo00822a047
日期:1971.11
Zur Kenntnis des 2-Oxy-3,4-diamino-pentans. I. Teil. Synthese, Struktur und Oxydation von N-Acylderivaten
作者:C. A. Grob、C. Wagner、P. Zoller
DOI:10.1002/hlca.19550380705
日期:——
The synthesis of the novel polyfunctional system 2-hydroxy-3,4-diamino-pentane is reported and various acyl derivatives are described. Oxidation of the latter yields α,β-diacylamino ketones, which are readily reduced back to alcohols.