One-Pot Synthesis of 2,5-Disubstituted Furans through In Situ Formation of Allenes and Enolization Cascade
作者:Yann Bernhard、Joachim Gilbert、Till Bousquet、Audrey Favrelle-Huret、Philippe Zinck、Sylvain Pellegrini、Lydie Pelinski
DOI:10.1002/ejoc.201901669
日期:2019.12.31
Furan synthesis: A one‐pot synthesis of 2,5‐disubstituted furans from γ‐ketoacids is reported. In situ formation of allenoates by action of chloroformate on carboxylic acid following by enolization of ketone affords furan derivatives by cyclization.
呋喃合成法:据报道由γ-酮酸一锅法合成2,5-二取代的呋喃。通过氯甲酸酯对羧酸的作用在原位形成脲酸酯,然后酮化烯酮,通过环化得到呋喃衍生物。