Reactions of diketene with iminothers such as benziminoethylether and phenacetiminoethylether were investigated. Refluxing of benziminoethylether with diketene in ether afforded 2-ethoxy-6-methyl-2-phenyl-3, 4-dihydro-2H-1, 3-oxazin-4-one (I) and 6-methyl-2-phenyl-4H-1, 3-oxazin-4-one (II). Phenacetiminoethylether reacted with diketene to give 2-benzyl-2-ethoxy-6-methyl-3, 4-dihydro-2H-1, 3-oxazin-4-one (IV), 3-acetyl-2, 6-dibenzyl-4-hydroxypyrimidine (V) and N-acetoacetyl-α-phenylacetamide (VI). The structure assignments of these compounds were described.
研究了双烯酮与亚
氨基其他化合物(如苯并亚
氨基
乙醚和非那西亚
氨基
乙醚)的反应。苯并亚
氨基
乙基醚与
双乙烯酮在
乙醚中回流,得到2-乙氧基-6-甲基-2-苯基-3,4-二氢-2H-1,3-恶嗪-4-酮(I)和6-甲基-2-苯基-4H -1, 3-恶嗪-4-酮(II)。非那乙酰亚
氨基
乙醚与双烯酮反应得到2-苄基-2-乙氧基-6-甲基-3,4-二氢-
2H-1,3-恶嗪-4-酮(IV),3-乙酰基-2,6-二苄基-4 -
羟基嘧啶(V)和N-乙酰乙酰基-α-苯乙酰胺(VI)。描述了这些化合物的结构分配。