dimercaptal 1 prepared from 4‐acetylbiphenyl and CS21) is a subject of current interest. The reaction of α‐ketoketene‐S,S‐acetals and α‐cyanoketene‐S,S‐acetals with guanidine and thiourea to give pyrimidine derivatives was reported2,3).
由 4-乙酰
联苯和 CS21) 制备的酮烯酮二巯基 1 是当前感兴趣的主题。据报道,α-酮烯酮-S、S-
缩醛和α-
氰基酮烯-S、S-
缩醛与
胍和
硫脲反应生成
嘧啶衍
生物2,3)。