dc.contributor.author | Christoforou, Irene C. | en |
dc.contributor.author | Koutentis, Panayiotis Andreas | en |
dc.contributor.author | Michaelidou, Sophia S. | en |
dc.creator | Christoforou, Irene C. | en |
dc.creator | Koutentis, Panayiotis Andreas | en |
dc.creator | Michaelidou, Sophia S. | en |
dc.date.accessioned | 2019-11-21T06:17:20Z | |
dc.date.available | 2019-11-21T06:17:20Z | |
dc.date.issued | 2006 | |
dc.identifier.issn | 1424-6376 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55327 | |
dc.description.abstract | The chemistry of various 5H-1,2,3-dithiazoles is investigated with emphasis on assisted ring opening and ring closure reactions leading to new heterocycles. Thus on treatment with catalytic tetraalkylammonium iodide N-(2-chloropyrid-3-yl)- and N-(4-chloropyrid-3-yl)-4-chloro-1,2,3-dithiazol-5H- imines 19 and 20 give thiazolo[5,4-b]pyridine-2-carbonitrile 16 and thiazolo-[4,5-c]pyridine-2-carbonitrile 17 respectively. Similar treatment of bisdithiazoles 29 and 30 afford high yielding routes to 1,3,4-thiadiazole-2,5- dicarbonitrile 31 and thiazole-2,4,5-tricarbonitrile 32 respectively. N-(Pyrid-3-yl)-4-chloro-1,2,3-dithiazol-5H-imine 36 reacts with secondary alkylamines to give as main product pyrido[2,3-d]pyrimidines 37 and several minor byproducts including a deep green quinoidal 2,2′-bithiazole 40. Dithiazolylidenacetonitriles 43 react with either anhydrous HBr or tetraalkylammonium chloride to afford a series of 3-halo-4-substituted- isothiazole-5-carbonitriles 45 and 52 respectively. The reactions of dithiazoles 43 with tetraalkylammonium chloride are complicated owing to the formation of isothiazolo-pentathiepin-8-carbonitrile 53, isothiazolodithiin-4,5,7- tricarbonitrile 54, tetracyanothiophene 56 and an unidentified compound 55 whose possible structures are proposed. The mechanistic rationales for the formation of the identified products are proposed. | en |
dc.source | Arkivoc | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-31544442173&partnerID=40&md5=34c6e2c56442329bd73f90b9f87dec3c | |
dc.subject | Acetylene | en |
dc.subject | Dithiazole | en |
dc.subject | Heterocycle | en |
dc.subject | Isothiazole | en |
dc.subject | Thiazole | en |
dc.title | 1,2,3-Dithiazole chemistry in heterocyclic synthesis | en |
dc.type | info:eu-repo/semantics/article | |
dc.description.volume | 2006 | |
dc.description.issue | 7 | |
dc.description.startingpage | 207 | |
dc.description.endingpage | 223 | |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :19</p> | en |
dc.source.abbreviation | Arkivoc | en |
dc.contributor.orcid | Koutentis, Panayiotis Andreas [0000-0002-4652-7567] | |
dc.contributor.orcid | Christoforou, Irene C. [0000-0001-6624-3548] | |
dc.gnosis.orcid | 0000-0002-4652-7567 | |
dc.gnosis.orcid | 0000-0001-6624-3548 | |