Sodium Hydride Mediated Cascade Reaction towards the Synthesis of 1,5-Disubstituted Uracil from Cyanamides Derived from Baylis-Hillman Adducts
作者:S. Batra、S. Nag、G. Yadav、P. Maulik
DOI:10.1055/s-2007-965931
日期:2007.3
The substituted cyanamides generated from Baylis-Hillman adducts afford 1,5-disubstituted uracils via a sodium hydride induced cascade reaction involving sequential intramolecular attack of the hydroxy group on the nitrile group, cyclization of the resulting ureide with the ester moiety, and rearrangement of the exocyclic double bond.
由 Baylis-Hillman 加合物产生的取代氰酰胺通过氢化钠诱导的级联反应提供 1,5-二取代尿嘧啶,该级联反应包括羟基对腈基的连续分子内攻击、所得脲与酯部分的环化和重排环外双键。