Sulfur-nitrogen heterocycles from the condensation of pyrazolones and 2-iminothiazolidin-4-ones with phenyl isothiocyanate
JOURNAL OF CHEMICAL RESEARCH, no.5, pp.302-304, 2007 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Publication Date: 2007
- Journal Name: JOURNAL OF CHEMICAL RESEARCH
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.302-304
- Yıldız Technical University Affiliated: Yes
Abstract
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 formed 2,4 '-bi(thiazolidine)-derived products.