作者:Haukur Kristinsson、Tammo Winkler、Grety Rihs、Hans Fritz
DOI:10.1002/hlca.19850680510
日期:1985.8.14
Derivatives of the unknown 2-amino-6H-1,3-oxazin-6-one 2 have been synthesized for the first time in two steps and in excellent yields, starting from N-cyanocarbonimidates 3a–c and cyanoacetates. The structures of 2a–c are assigned by NMR-spectroscopic methods and corroborated by an X-ray structure analysis of 2c.
未知的2-氨基-6 H -1,3-恶嗪-6-one 2的衍生物是从N-氰基碳亚氨酸3a - c和氰基乙酸盐开始,以两个步骤并且以优异的收率首次合成的。2a - c的结构通过NMR光谱法确定,并通过2c的X射线结构分析得到证实。