PHOSPHINE-CATALYZED CYCLOADDITION OF 2,3-BUTADIENOATES OR 2-BUTYNOATES WITH ELECTRON-DEFICIENT OLEFINS - A NOVEL [3-ANNULATION APPROACH TO CYCLOPENTENES(2])
Cm. Zhang et Xy. Lu, PHOSPHINE-CATALYZED CYCLOADDITION OF 2,3-BUTADIENOATES OR 2-BUTYNOATES WITH ELECTRON-DEFICIENT OLEFINS - A NOVEL [3-ANNULATION APPROACH TO CYCLOPENTENES(2]), Journal of organic chemistry, 60(9), 1995, pp. 2906-2908