The Conversion of 5,5′-Bi(1,2,3-dithiazolylidenes) into Isothiazolo[5,4-d]isothiazoles
Ημερομηνία
2018Συγγραφέας
Konstantinova, Lidia S.Baranovsky, Ilia V.
Strunyasheva, Vlada V.
![ORCID logo](https://orcid.org/sites/default/files/images/orcid_16x16.png)
Popov, Vadim V.
Lyssenko, Konstantin A.
![ORCID logo](https://orcid.org/sites/default/files/images/orcid_16x16.png)
Rakitin, Oleg A.
Source
MoleculesVolume
23Issue
6Google Scholar check
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
Thermolysis of 4,4&prime -dichloro-, 4,4&prime -diaryl-, and 4,4&prime -di(thien-2-yl)-5,5&prime -bi(1,2,3-dithiazol-ylidenes) affords the respective 3,6-dichloro-, 3,6-diaryl- and 3,6-di(thien-2-yl)isothiazolo[5,4-d]-isothiazoles in low to high yields. The transformation of the 4,4&prime -diaryl- and 4,4&prime -di(thien-2-yl)-5,5&prime -bi(1,2,3-dithiazolylidenes) occurs at lower temperatures in the presence of the thiophiles triphenylphosphine or tetraethylammonium iodide. Optimized reaction conditions and a mechanistic rationale for the thiophile-mediated ring transformation are presented.