Sulfur-nitrogen Heterocycles from the Condensation of Pyrazolones and 2-iminothiazolidin-4-ones with Phenyl Isothiocyanate
作者:Emine Bagdatli、Senem Akkus、Cigdem Yolacan、Nüket Öcal
DOI:10.3184/030823407x215852
日期:2007.5
The condensation of 2-pyrazolin-5-ones with phenyl isothiocyanate, followed by reaction of the resulting thiolate ions with chloroacetyl chloride, phenacyl bromide, oxalyl chloride, 1,4-dibromo-2,3-butanedione and ethyl chloroformate, resulted in cyclisation to S,N-heterocycles in all cases. 2-Iminothiazolidin-4-ones, with phenyl isothiocyanate and then chloroacetyl chloride or phenacyl bromide, similarly
2-吡唑啉-5-酮与异硫氰酸苯酯缩合,随后产生的硫醇根离子与氯乙酰氯、苯甲酰溴、草酰氯、1,4-二溴-2,3-丁二酮和氯甲酸乙酯反应,导致环化在所有情况下为 S,N-杂环。2-Iminothiazolidin-4-ones,与苯基异硫氰酸酯,然后是氯乙酰氯或苯甲酰溴,类似地形成了 2,4'-双(噻唑烷)衍生的产物。