Tetrazoles: LVII. Preparation and chemical properties of 1-substituted 5-arylsulfonyltetrazoles
摘要:
Oxidation of 1-substituted 5-arylsulfanyltetrazoles with m-chloroperoxybenzoic acid and NaIO4 in the presence of RuCl3 leads to the formation of the 5-arylsulfonyltetrazoles. The microwave activation significantly accelerates the oxidation with sodium periodate. The phenylsulfonyl group in compounds obtained underwent the nucleophilic substitution when treated with ethanol, phenol, or benzimidazole in acetonitrile in the presence of NaOH.
Copper-catalyzed arylation of tetrazole-5-thiones upon convection heating and microwave activation conditions
作者:U. N. Dmitrieva、S. M. Ramsh、Yu. E. Zevatskii、T. V. Artamonova、L. V. Myznikov
DOI:10.1007/s10593-012-0996-0
日期:2012.5
The arylation of 1-phenyltetrazole-5-thione using a series of iodobenzene derivatives in the presence of cuprouschloride and a ligand such as ethylenediamine. It was shown that the use of microwave activation permitted shortening of the reaction time, increasing yields and simplification of the reaction products isolation.
Novel Mixed Complexes of Copper(II) and Ethylenediamine: Synthesis, Crystal Structure, and Catalytic Activity in the Cross-Coupling Reaction of 1-Phenyl-5H-tetrazole-5-thiol and Iodobenzene
作者:L. V. Myznikov、A. I. Fisher、U. N. Dmitrieva、T. V. Artamonova、Yu. E. Zevatskii
DOI:10.1134/s1070363218030155
日期:2018.3
Two earlier unknown complexes, [Cu(en)(2)(Hptt)]Br (Hptt = 1-phenyl-1H-terazole-5-thiol, en = ethylenediamine) and trans-[Cu(en)2(H2O)Br]Br, have been synthesized and characterized using X-ray diffraction analysis. In [Cu(en)(2)(Hptt)]Br complex, the copper cation is bonded with the N-4 atom of tetrazole ring. Catalytic activity of the obtained complexes in cross-coupling reaction of 1-phenyl-5H-tetrazole-5-thiol with iodobenzene is comparable to that of CuBr2 in the presence of 2 eq. of ethylenediamine.
New method of 5-mercaptotetrazoles functionalization
作者:P. A. Aleshunin、D. V. Aleshunina、V. A. Ostrovskii
DOI:10.1134/s1070428011110273
日期:2011.11
Kinetic studies of the copper-catalyzed cross-coupling of 1-phenyltetrazole-5-thiol and iodobenzene
作者:U. N. Dmitrieva、T. V. Artamonova、Yu. E. Zevatskii、N. P. Novoselov、L. V. Myznikov
DOI:10.1134/s1070363213090132
日期:2013.9
Kinetics of the copper-catalyzed cross-coupling of 1-phenyltetrazole-5-thiol and iodobenzene under thermal and dielectric heating has been studied; the kinetic parameters of the reaction have been calculated. Microwave irradiation has not influenced significantly the reaction molecular mechanism; the process acceleration can be due to macrokinetic effects.
Diaryl and Heteroaryl Sulfides: Synthesis via Sulfenyl Chlorides and Evaluation as Selective Anti-Breast-Cancer Agents
作者:Ivelina M. Yonova、Charlotte A. Osborne、Naomi S. Morrissette、Elizabeth R. Jarvo
DOI:10.1021/jo402586v
日期:2014.3.7
A mild protocol for the synthesis of diaryl and heteroaryl sulfides is described. In a one-pot procedure, thiols are converted to sulfenylchlorides and reacted with arylzinc reagents. This method tolerates functional groups including aryl fluorides and chlorides, ketones, as well as N-heterocycles including pyrimidines, imidazoles, tetrazoles, and oxadiazoles. Two compounds synthesized by this method