One-Pot Synthesis of γ-Diketones, γ-Keto Esters, and Conjugated Cyclopentenones from Nitroalkanes
作者:Roberto Ballini、Luciano Barboni、Giovanna Bosica、Dennis Fiorini
DOI:10.1055/s-2002-35993
日期:——
Conjugated addition of primary nitroalkanes to α,β-unsaturated ketones or α,β-unsaturated esters, in the presence of two equivalents of DBU, allows the one-pot prepration of γ-diketones or γ-keto esters, respectively. When 2-aryl-1-nitroethane derivatives are employed as starting nitroalkanes in the reaction with α,β-unsaturated ketones, the one-pot formation of cyclopentenones is observed.
初级硝基烷与α,β-不饱和酮或α,β-不饱和酯的共轭加成,在两个当量的DBU存在下,能够实现γ-二酮或γ-酮酯的一锅法合成。当2-芳基-1-硝基乙烷衍生物作为反应中与α,β-不饱和酮的起始硝基烷时,观察到环戊烯酮的一锅法形成。