A Facile synthesis of<i>n,n</i>′-oligomethylenebis(4,5-dihydrofuran-3-carboxamide)s using manganese(III)-based radical cyclization of n,n′-oligomethylenebis(3-oxobutanamide)s with 1,1-diarylethenes
作者:Firoz Alam Chowdhury、Hiroshi Nishino
DOI:10.1002/jhet.5570420713
日期:2005.11
The reaction of N,N′-oligomethylenebis(3-oxobutanamide)s with 1,1-diarylethenes in the presence of manganese(III) acetate in acetic acid at 100° produced N N′-oligomethylenebis(2-methyl-5,5-diaryl-4,5-dihydrofuran-3-carboxamide)s. Similarly, the reaction of 3-oxobutanamidoethyl 3-oxobutanoate or N,N′-(3,6-dioxaoctamethylene)bis(3-oxobutanamide) with 1,1-diphenylethene gave (2-methyl-5,5-diphenyl-4
的反应N,N' -oligomethylenebis(3-氧代丁酰胺)■具有在乙酸锰在乙酸存在下,在100℃产生的1,1-二芳基乙烯NN'(2-甲基-5,5- -oligomethylenebis二芳基-4,5-二氢呋喃-3-羧酰胺)。同样地,3-氧代丁酸3-氧杂丁基酰胺基乙酯或N,N' -(3,6-二氧杂八亚甲基)双(3-氧代丁酰胺)与1,1-二苯乙烯的反应得到(2-甲基-5,5-二苯基-4, 2-甲基-5,5-二苯基-4,5-二氢呋喃-3-羧酸5-二氢呋喃-3-酰胺基)乙酯或N,N' -(3,6-二氧杂辛基亚甲基)双(2-甲基-5) (5-二苯基-4,5-二氢呋喃-3-羧酰胺)的中等收率。