Study of TiO2 nanoparticle phase alteration and its catalytic effect on the chemoselective 𝑁-sulphonylation of amines and urazoles

Journal of Chemical Sciences

Babak Jaleh²  Fatemeh Soleimanei¹  Davood Azarifar1¹ 

[1] Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 65174, Iran$$;Department of Physics, Bu-Ali Sina University, Hamedan 65174, Iran$$

关键词: Amine;    urazole;    sulphonamide;    phase transformation;    TiO2P25-900;    ultrasound irradiation;    solvent-free.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Anatase and rutile are the two major crystalline phases of TiO2. Heat treatment can change crystal structure and physical properties of TiO2 nanoparticles. The effect of particles size on anatase-rutile phase transformation has been studied for the 𝑁-sulphonylation of amines and urazoles both under the conventional and ultrasound irradiation conditions. The main advantages allocated to this method are chemoselectivity, reduced reaction times, high yield, non-solvent green conditions and easy procedure. The catalyst can be easily recovered simply by filtration and reused with no significant loss in its reactivity.

【 授权许可】

Unknown