Reaction of isatin with acetophenone derivatives gave 3-hydroxy-3-phenacyl oxindole derivatives(II), dehydration of(II)gave 3-phenacylidene-2-indolinone derivatives(III). Condensation of(III)with hydrazine hydrate, phenylhydrazine and phenylthiourea afforded new spiropyrazolines(IV & V)and spiropyrimidinethione(VI)respectively. The structures of the final products were established by physical and spectral means.
异色酮与苯乙酮衍生物反应生成3-羟基-3-苯乙酰基氧吲哚衍生物<粗体>(II)粗体>,<粗体>(II)粗体>的脱水反应生成3-苯乙酰亚甲基-2-吲哚酮衍生物<粗体>(III)粗体>。将<粗体>(III)粗体>与水合肼、苯肼和苯硫脲缩合,分别得到新的螺环吡唑啉<粗体>(IV和V)粗体>和螺环嘧啶硫脲<粗体>(VI)粗体>。最终产物的结构经过物理和光谱手段得到确认。