Effect of some 2-arylbenzothiazoles on the photo-degradation of poly(vinyl chloride)

An efficient palladium catalyzed synthesis of 2-arylbenzothiazoles

“…[1][2][3][4][5][6][7] The reported syntheses of 2-arylbenzothiazoles involve the condensation of 2-aminobenzenethiol with 4-substituted phenyl derivatives of nitrile, aldehyde, acid, acid chlorides or esters and by the use of Jacobson's cyclization of thiobenzanilides. [8][9][10] Other general methods include microwave mediated reaction of o-aminothiophenol with b-chlorocinnamaldehydes, reaction of dibenzyl disulfides with o-aminothiophenol, reduction of o,o%-dinitrodiphenyl disulfide, reaction of S-aryl thiobenzoate with arylhaloamines, from 1,2,3-benzodithiazole-2-oxides, radical cyclization of benzyne intermediates and Grignard reactions of arylisothiocyanates.…”

Synthesis and crystal structure determination of copper(II) and iron(III) complexes of 2-(2-pyridyl)benzothiazole

“…Arylbenzothiazoles have wide practical application as antioxidants, vulcanization accelerators [2], UV-and thermo-stabilizers for polymer materials, dyes and diazotype materials [5,6], in electrophotography and in analytical chemistry for their chelating properties [5]. They have also been studied for use in photodegradation of poly(vinylcholoride) (PVC) as photo-sensitisizers [7]. Model compounds containing the benzothiazole unit have much interest for their optical properties [8].…”

Lithium bromide catalyzed efficient and convenient synthesis of 2-arylbenzothiazole derivatives

“…They have been in use as imaging agents for b-amyloid, antituberculotic and chemiluminescent agents, calcium channel antagonists, antitumor agents, antiparasitics, and photosensitizers [1][2][3][4][5][6][7][8]. These compounds also exhibit nonlinear optical [9], luminescent [10], and fluorescent [11] properties and are therefore used in designing sensor molecules of specific interest.…”