Benzoyl isothiocyanate reacts with active methylene reagents e.g. ethyl cyanoacetate, malonitrile and acetylacetone to give, in each case, the corresponding 1:1 adduct 1, 13 and 14 respectively, Compound 1 was utilized for the synthesis of several heterocyclic derivatives. Compound 14 undergoes ready cyclization in basic medium to give the 1,3-oxazine derivative 15. The structures of the products were assigned and confirmed on the basis of their elemental analysis and spectral data.
异
硫氰酸苯甲酰与活性亚甲基试剂(如
氰乙酸乙酯、
丙二腈和
乙酰丙酮)反应,在每种情况下分别生成相应的 1:1 加合物 1、13 和 14。 化合物 14 在碱性介质中发生环化反应,生成 1,3-恶嗪衍
生物 15。根据元素分析和光谱数据,确定并确认了这些产物的结构。