作者:Y. Iwakura、F. Toda、Y. Torii
DOI:10.1016/s0040-4020(01)92303-8
日期:1967.1
2-Alkenyl-2-oxazolin-5-ones were prepared from N-Acryloyl-and N-methacryloyl-α-amino acids in excess acetic anhydride, while in the reaction with an equimolar amount of acetic anhydride in pyridine, new pseudoxazolones, 2-alkylidene-3-oxazolin-5-ones, were synthesized from the same N-acyl-α-amino acids in high yields. The 5-oxazolones were distinguished by IR, NMR, and UV spectroscopy. A structural relationship
在过量
乙酸酐中,由N-
丙烯酰基和N-甲基
丙烯酰基-
α-氨基酸制得2-烯基-2-
恶唑啉-5-酮,同时与等摩尔量的
乙酸酐在
吡啶中反应,得到新的拟
恶唑酮2 -亚烷基-3-
恶唑啉-5-酮是由相同的N-酰基-
α-氨基酸高产率合成的。通过IR,NMR和UV光谱区分5-
恶唑酮。讨论了产生的5-
恶唑酮与用作起始原料的N-酰基-
α-氨基酸之间的结构关系。