dc.contributor.author | Christoforou, Irene C. | en |
dc.contributor.author | Koutentis, Panayiotis Andreas | en |
dc.contributor.author | Rees, C. W. | en |
dc.creator | Christoforou, Irene C. | en |
dc.creator | Koutentis, Panayiotis Andreas | en |
dc.creator | Rees, C. W. | en |
dc.date.accessioned | 2019-11-21T06:17:21Z | |
dc.date.available | 2019-11-21T06:17:21Z | |
dc.date.issued | 2002 | |
dc.identifier.issn | 1472-7781 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55329 | |
dc.description.abstract | Dibromomalononitrile 3a reacts with 4-chloro-1,2,3-dithiazole-5-thione 9 and monobromomalononitrile 3c reacts with 4,5-dichloro-1,2,3-dithiazolium chloride 4 (Appel salt) to give 4-chloro-5H-1,2,3-dithiazole-5-ylidenemalononitrile 1 in 76 and 73% yields, respectively, thus providing the best available synthesis of this key intermediate. The reactions were accompanied by the formation of 1-(4-chloro-5H-1,2,3-dithiazol-5-ylideneamino)-1,2-dihaloethene-2- carbonitriles 5, the yields of which increased with reaction temperature. In refluxing toluene, dibromomalononitrile 3a and dithiazolethione 9 give directly 3-bromoisothiazole-4,5-dicarbonitrile 12 (59%) | en |
dc.description.abstract | the probable intermediate (dicyanomethylene)dithiazole 1 is readily converted into bromoisothiazole 12 on treatment with anhydrous gaseous HBr at ca. 20°C (83%). The addition of bromine to dithiazolethione 9 gives 5-bromosulfanyl-4-chloro-1,2,3-dithiazolium bromide 11 almost quantitatively. Mechanisms are proposed for all these reactions. | en |
dc.source | Journal of the Chemical Society.Perkin Transactions 1 | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036013827&doi=10.1039%2fb202038f&partnerID=40&md5=03b01386b91ee3baa9314fdb69634c4d | |
dc.subject | Synthesis (chemical) | en |
dc.subject | Thermal effects | en |
dc.subject | Bromine | en |
dc.subject | Addition reactions | en |
dc.subject | Dibromomalononitrile | en |
dc.subject | Dithiazoles | en |
dc.subject | Halogenated malononitriles | en |
dc.subject | Halogenation | en |
dc.subject | Hydrocarbons | en |
dc.subject | Molecular structure | en |
dc.title | Reactions of 1,2,3-dithiazoles with halogenated malononitriles | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1039/b202038f | |
dc.description.volume | 10 | |
dc.description.startingpage | 1236 | |
dc.description.endingpage | 1241 | |
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 :21</p> | en |
dc.source.abbreviation | J Chem Soc Perkin Trans 1 | 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 | |