Synthetic, mechanistic and kinetic studies on the organo-nanocatalyzed synthesis of oxygen and nitrogen containing spiro compounds under ultrasonic conditions

A novel class of organo-nanocatalysts was fabricated by encapsulating magnetic Fe 2 O 3 @SiO 2 nanoparticles with thiamine hydrochloride. Its catalytic application in the synthesis of oxygen and nitrogen containing spiro heterocycles via ultrasonication was thoroughly investigated. The synthetic pro...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2016, Vol.18 (15), p.4216-4227
Main Authors: Singh, Nongthombam Geetmani, Lily, Makroni, Devi, Shougaijam Premila, Rahman, Noimur, Ahmed, Aziz, Chandra, Asit K, Nongkhlaw, Rishanlang
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Hydrochlorides
Nitrogen
Oxygen
Reaction kinetics
Synthesis
Thiamine
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Summary:A novel class of organo-nanocatalysts was fabricated by encapsulating magnetic Fe 2 O 3 @SiO 2 nanoparticles with thiamine hydrochloride. Its catalytic application in the synthesis of oxygen and nitrogen containing spiro heterocycles via ultrasonication was thoroughly investigated. The synthetic protocol was found to be efficient, economical and green. The prepared catalyst was characterised by TEM, SEM, EDS, powder XRD, VSM, FT-IR, TGA, DTA, etc . Mechanistic and kinetic studies for the organic transformations were also carried out to determine the catalytic role of thiamine hydrochloride using a computational method viz. DFT: B3LYP. Vitamin B 1 functionalised nano-ferrites: an organo-nanocatalyst for the synthesis of various spiro derivatives.
ISSN:1463-9262
1463-9270
DOI:10.1039/c6gc00724d