作者:M. Yamauchi、S. Akiyama、T. Watanabe、K. Okamura、T. Date
DOI:10.1002/jhet.5570330229
日期:1996.3
The reaction of ethoxydihydropyrans 2, which were prepared from 2-methylene-1,3-dicarbonyl compounds 1 with ethyl vinyl ether, and hydroxylamine hydrochloride gave 4-cyanoethylisoxazoles 3 whose substituents at the 3 and 5 positions were transformed from substituent at the 2 position and the acyl group of 2 regioselectively.
ethoxydihydropyrans的反应2,这是从2-亚甲基-1,3-二羰基化合物制备1用乙基乙烯基醚,和盐酸羟胺,得到4- cyanoethylisoxazoles 3个,其在3个和5位的取代基是选自取代基在2位变换和2个酰基的区域选择性。