A versatile route to benzodiazocine and spiropyran derivatives through chalcones

Journal of Chemical Sciences

Rahul Joshi²  Johnson George²  Saurabh Singh²  Ramchand T Pardasani2¹ 

[1] Department of Chemistry, Central University of Rajasthan, Bandarsindri, Ajmer 305 802, India$$;Department of Chemistry, University of Rajasthan, Jaipur 302 055, India$$

关键词: Thioisatin;    chalcones;    benzodiazocines;    spiropyrans;    DFT calculations;    transition state.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Syntheses of 3-(phenyl)-benzo[b]thiophene [2, 3-d][1,2] benzodiazocine derivatives have been accomplished by the reaction of 3-phenacylidine-2-benzo[b]thiophene-2-ones with o-phenylene diamine. The photolytic reaction with trans-stilbene resulted in the exclusive formation of spiro{2',5',6'-triphenyl-2H-pyran-4',3}-benzo[b]thiophene-2-one derivatives. Theoretical calculations have been performed to study the mechanism and stereoselectivity of products. Good yield and broad scope of usable substrates of industrial relevance are other prominent features of the present methodologies.

【 授权许可】

Unknown