Polynuclear blocks consisting of nonfused heterocycles of the azole series, connected through methylene bridges, were synthesized by successive addition of azole units via cycloaddition of organic azides to the triple bond of N-(2-propynyl)azoles, as well as via reaction of azide ion at the cyano group of cyanomethylazoles. Initial N-(2-propynyl)azoles were prepared by reaction of 2-propynyl bromide with 1,2,3-triazoles, benzotriazole, and tetrazoles; cyanomethylazoles were obtained by alkylation of azoles with chloroacetonitrile. An analogous scheme was used to add heterocyclic units to 2-phenyl-1,2,3-triazole-4-carbonitrile. In this case, the first two heterocyclic units are linked through the ring carbon atom.
Synthesis of branched polynuclear 1,3,4-oxadiazoles
作者:L. I. Vereshchagin、O. N. Verkhozina、A. G. Proidakov、A. I. Smirnov、V. N. Kizhnyaev
DOI:10.1007/s10593-008-0163-9
日期:2008.9
The reaction of 5-substituted mono-and polytetrazoles with heterocyclic acid chlorides and trifluoroacetic acid anhydride gave branched polynuclear 1,3,4-oxadiazole systems.
Meshcheryakov; Mikiya; Kirillova, Russian Journal of Organic Chemistry, 1997, vol. 33, # 11, p. 1641 - 1644
Polynuclear nonfused tetrazole-, 1,3,4-oxadiazole-, and 1,2,3-triazole-containing systems
作者:L. I. Vereshchagin、A. V. Petrov、A. G. Proidakov、F. A. Pokatilov、A. I. Smirnov、V. N. Kizhnyaev
DOI:10.1134/s1070428006060170
日期:2006.6
Polynuclear nonfused blocks containing 1,2,3-triazole, 1,3,4-oxadiazole, and tetrazole rings were synthesized by reaction of C-substituted tetrazoles with carboxylic acid chlorides, as well as by cycloaddition of 2-azidomethyl-1,3,4-oxadiazoles at the triple bond of acetylenic compounds.
Synthesis of Polynuclear Nonfused Azoles
作者:O. N. Verkhozina、V. N. Kizhnyaev、L. I. Vereshchagin、A. V. Rokhin、A. I. Smirnov
DOI:10.1023/b:rujo.0000019746.10504.f3
日期:2003.12
Polynuclear blocks consisting of nonfused heterocycles of the azole series, connected through methylene bridges, were synthesized by successive addition of azole units via cycloaddition of organic azides to the triple bond of N-(2-propynyl)azoles, as well as via reaction of azide ion at the cyano group of cyanomethylazoles. Initial N-(2-propynyl)azoles were prepared by reaction of 2-propynyl bromide with 1,2,3-triazoles, benzotriazole, and tetrazoles; cyanomethylazoles were obtained by alkylation of azoles with chloroacetonitrile. An analogous scheme was used to add heterocyclic units to 2-phenyl-1,2,3-triazole-4-carbonitrile. In this case, the first two heterocyclic units are linked through the ring carbon atom.