Publication detail

Efficiency of 1,2,4-dithiazole derivatives during sulfurisation of Triphenyl phosphite

Authors: Hanusek Jiří | Laws Andrew | Page Michael

Year: 2008

Type of publication: ostatní - přednáška nebo poster

Name of source: 23rd European Colloquium on Heterocyclic Chemistry

Publisher name: University of Antwerp

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
cze	Účinnost derivátů 1,2,4-dithiazolu při sulfuraci trifenyl-fosfitu	V prezentované studii jsme se zabývali srovnáním reaktivity 3-ethoxy-1,2,4-dithiazol-5-onu, 3-methyl-1,2,4-dithiazol-5-onu, 3-phenyl-1,2,4-dithiazol-5-onu, 3-fenyl-1,2,4-dithiazol-5-thionu, 3-amino-1,2,4-dithiazol-5-thionu, 1,2,4-dithiazolidin-3,5-dionu a 4-fenyl-1,2,4-dithiazolidin-3,5-dionu vůči trifenyl fosfitu v acetonitrilu, dichlormethanu, methanolu a tetrahydrofuranu při 25 °C. U 3-ethoxy-1,2,4-dithiazol-5-onu jsme zjistili, že vedlejším reakčním produktem je velmi reaktivní ethoxythiokarbonyl isokyanát, který může být zachycen reakcí s nukleofily.
eng	Efficiency of 1,2,4-dithiazole derivatives during sulfurisation of Triphenyl phosphite	In the current study, we have compared reactivity of 3-ethoxy-1,2,4-dithiazole-5-one, 3-methyl-1,2,4-dithiazole-5-one, 3-phenyl-1,2,4-dithiazole-5-one, 3-phenyl-1,2,4-dithiazole-5-thione, 3-amino-1,2,4-dithiazole-5-thione, 1,2,4-dithiazolidine-3,5-dione and 4-phenyl-1,2,4-dithiazolidine-3,5-dione toward triphenyl phosphite in acetonitrile, dichloromethane, methanol and tetrahydrofuran at 25 °C. For 3-ethoxy-1,2,4-dithiazole-5-one we have found that reaction produces very reactive ethoxythiocarbonyl isocyanate which can be trapped by reaction with nucleophiles.	1,2,4-dithiazole derivatives, kinetics, mechanism, sulfurization

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