Nguyen, Thanh Binh; Ermolenko, Ludmila; Retailleau, Pascal; Al-Mourabit, Ali published an article in 2014, the title of the article was Elemental Sulfur Disproportionation in the Redox Condensation Reaction between o-Halonitrobenzenes and Benzylamines.Formula: C7H6ClNO2 And the article contains the following content:
The disproportionation of elemental sulfur at moderate temperatures is investigated in the redox condensation involving o-halonitrobenzenes 1 and benzylamines 2. As a redox moderator, elemental sulfur plays the dual role of both electron donor and acceptor, generating its lowest and highest oxidation states: S-2 (sulfide equivalent) in benzothiazole 3 and S+6 (sulfate equivalent) in sulfamate 4, and filling the electron gap of the global redox condensation process. Along with this process, a cascade of reactions of reduction of the nitro group of 1, oxidation of the aminomethyl group of 2, metal-free aromatic halogen substitution, and condensation finally led to 2-arylbenzothiazoles 3. The experimental process involved the reaction of 2-Chloro-4-methyl-1-nitrobenzene(cas: 38939-88-7).Formula: C7H6ClNO2
The Article related to sulfur disproportionation redox condensation halonitrobenzene benzylamine preparation, benzothiazoles, multicomponent reactions, redox condensation, sulfur, sulfur disproportionation and other aspects.Formula: C7H6ClNO2
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics