Experimental and theoretical studies on the diastereoselective diels-alder reactions of chiral 1-alkoxy-1,3-butadienes. I: Parent system and 4-substituted derivatives
作者:Marina Virgili、Miquel A Pericàs、Albert Moyano、Antoni Riera
DOI:10.1016/s0040-4020(97)00854-5
日期:1997.9
Chiral 1-alkoxy-1,3-dienes (parent and 4-substituted) have been prepared from the corresponding chiral alkoxyacetylenes in a stereoselective manner following a 2C + 2C approach. The Diels-Alder reactions of the dienes with maleic anhydride and 4-phenyl-3H-1,2,4-triazoline-3,5-dione take place with significant diastereoselectivity. Theoretical calculations on these cycloadditions, performed with the
按照2C + 2C方法,从相应的手性烷氧基乙炔以立体选择性的方式制备了手性1-烷氧基-1,3-二烯(母体和4-取代的)。二烯与马来酸酐和4-苯基-3 H -1,2,4-三唑啉-3,5-二酮的狄尔斯-阿尔德反应具有非对映选择性。用SCF-MO方法AM1进行的这些环加成反应的理论计算已用于加合物的立体化学分配中。