PÍŽOVÁ, Hana, Stanislav MAN, Jan TARABA and Milan POTÁČEK. Rearrangement of fused tetracyclic heterocycles induced by alkyl halides and formation of a new type of "proton sponge". Tetrahedron. Elsevier Science Ltd., 2009, vol. 65, No 4, p. 792-797. ISSN 0040-4020. Available from: https://dx.doi.org/10.1016/j.tet.2008.11.057.
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Basic information
Original name Rearrangement of fused tetracyclic heterocycles induced by alkyl halides and formation of a new type of "proton sponge"
Name in Czech Přesmyk kondensovaných tetracyklických heterocyklů vyvolaný alkylhalogenidy a vytvoření nového typu protonové houby
Authors PÍŽOVÁ, Hana (203 Czech Republic, belonging to the institution), Stanislav MAN (203 Czech Republic, belonging to the institution), Jan TARABA (203 Czech Republic, belonging to the institution) and Milan POTÁČEK (203 Czech Republic, guarantor, belonging to the institution).
Edition Tetrahedron, Elsevier Science Ltd. 2009, 0040-4020.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10401 Organic chemistry
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 3.219
RIV identification code RIV/00216224:14310/09:00049585
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1016/j.tet.2008.11.057
UT WoS 000262928100009
Keywords in English tetracyclic fused heteocycles; rearrangement; alkyl halides initiation; proton sponge;
Tags alkyl halides initiation, IK, proton sponge, rearrangement, rivok, tetracyclic fused heteocycles
Tags International impact, Reviewed
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 20/4/2012 09:23.
Abstract
Intramolecular criss-cross cycloaddition of 3-substituted symmetrical homoallenyl azines 2 by heating in xylene lead to interesting fused heterocyclic systems consisting of four five-membered rings with two nitrogen atoms in the skeleton 3. These compounds 3 were found to be sensitive to attack by alkyl halides. Their presence, depending on the reaction conditions, resulted in a new type of rearrangement leading to compounds 4 and 5, respectively. With an excess of alkyl halide and in the presence of NaBH3CN a new structure 6 with signs of the molecule corresponding a proton sponge moiety was created. The scope of the rearrangement and reaction products structure was investigated.
Abstract (in Czech)
Intramolekulární criss-cross cykloadice 3-substituovaných symetrických homoallenylazinů zahříváním v xylenu vede k tvorbě kondensovaných heterocyklů tvořených 4 pětičlennými kruhy se dvěma dusíkovými atomy ve skeletu 3. Sloučeniny 3 jsou citlivé k přesmyku působením alkyl halogenidů za tvorby sloučenin 4 a nebo 5 podle reakčních podmínek. V přebytku alkylhalogenidu a přítomnosti NaBH3CN dochází k vytvoření nové struktury 6, která nese znaky molekuly známé jako "protonová houba". Rozsah přesmyku a struktura produktů reakce byly podrobeny zkoumání.
Links
GA203/09/1345, research and development projectName: Allenový synthon v přípravě heterocyklických sloučenin
Investor: Czech Science Foundation, Allenyl synthon in synthesis of heterocyclic compounds
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