The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2-Mercapto-5-methylbenzimidazole( cas:27231-36-3 ) is researched.Synthetic Route of C8H8N2S.Raditoiu, Valentin; Wagner, Luminita; Raditoiu, Alina; Ardeleanu, Petrea; Grigoriu, Nicoleta; Tarabasanu-Mihaila, Corneliu published the article 《Heterocyclic dyes with condensed rings derived from 1,3-dihydro-2H-benzimidazole-2-thiones. Benzimidazo[2,1-b]naphtho[2,3-d]thiazole-7,12-diones》 about this compound( cas:27231-36-3 ) in Revista de Chimie (Bucharest, Romania). Keywords: benzimidazonaphthothiazoledione dye preparation chloronaphthoquinone cyclocondensation benzimidazothione. Let’s learn more about this compound (cas:27231-36-3).
Seven new benzimidazo[2,1-b]naphtho[2,3-d]thiazole-7,12-dione dyes have been synthesized by cyclocondensation of 2,3-dichloro-1,4-naphthoquinone with some 1,3-dihydro-2H-benzimidazole-2-thione derivatives The reaction products were purified and characterized by means of elemental anal., UV-VIS, IR, and 1H- and 13C-NMR spectra, and thermal anal. Structure-property relationships in the dyes are discussed with respect to the nature of the substituents in the benzimidazole moieties.
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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem