作者:S. Sebti、A. Foucaud
DOI:10.1016/s0040-4020(01)87355-5
日期:1986.1
and 2-acyloxy 3-oxo 2,3-diphenylpropanamides 13 under anionic activation by cesium fluoride was studied. The fluoride ion is an efficient base for the heterocyclization of 1 into 3 (2H)-furanones and 2 (5H)-furanones, but the hydrolysis of the ester group lowered the selectivity of the reaction. However, the cleavage of 13 into the esters 14 and the cyclization of 3-benzoyloxy 3-methyl 2-butanone into
研究了氟化铯在阴离子活化下2-酰氧基2-甲基3-氧代丁酰胺1和2-酰氧基3-氧代2,3-二苯基丙酰胺13的演化。氟离子是将1杂环化为3(2H)-呋喃酮和2(5H)-呋喃酮的有效碱,但是酯基团的水解降低了反应的选择性。然而,将13裂解为酯14和将3-苯甲酰氧基3-甲基2-丁酮环化为布勒酮是非常选择性的。