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E-Journal of Chemistry
Volume 6 (2009), Issue 2, Pages 399-411

Study on Designing Sulfur Containing Bifunctional Building Block with Improved Refractive Index

G. S. Jha, P. Chhabra, G. Suri, M. Tyagi, P. Arora, G. Seshadri, and R. K. Khandal

Shriram Institute for Industrial Research, 19, University Road, Delhi-110007, India

Received 31 July 2008; Revised 28 September 2008; Accepted 10 November 2008

Copyright © 2009 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Sulfur and chlorine containing bifunctional diols with C-S bond has been prepared starting from chloroepoxy alkane and thioalcohol. The studies of FTIR, TLC, HPLC and NMR have been used to understand the reaction mechanism, as well as for optimization of the reaction parameters. The reaction is highly exothermic and the effect of temperature, rate of addition of reagents and reaction time are important factors affecting the formation of diol. Viscosity studies, HPLC, FTIR, NMR and acid number studies have shown that, these parameters could be used as process control parameters for the synthesis of diol. Refractive index of the synthesized diol is found to be higher than that of the reactants used.