J. Iran. Chem. Soc., Vol. 8, No. 2 June 2011, pp.484~494.

Current location: JICS Archive > Vol. 8 > No. 2 > Articles : 13

A New Crystal Engineering Approach for the Synthesis of {[K.18-Crown-6]I3}n as a Nanotube-Like and Recyclable Catalyst for the Chemoselective Silylation of Alcohols

M.A. Zolfigola,*, E. Kolvaria, N. Koukabia, S. Salehzadeha, G. Chehardolib, I.S. Tidmarshc and K. Niknamd

aFaculty of Chemistry, Bu-Ali Sina University, P. O. Box 4135, Hamedan 6517838683, Iran
bSchoolof Pharmacy, Hamedan University of Medical Sciences, Hamedan, Iran
cDepartment of Chemistry, University of Sheffield, Sheffield, S3 7HF, UK
dDepartment of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran

     Reaction of 18-crown-6 with KI in ethanol solution followed by addition of iodine (I2) afforded a unique triiodide salt with a nanotube-like structure ({[K.18-Crown-6]I3}n). It is shown that this reagent may be used for the chemoselective trimethylsilylation of alcohols. The synthesis of the crystalline reagent is a good example of crystal engineering. Reagent was recycled and reused.

Keywords: {[K.18-Crown-6]I3}n, 18-Crown-6, Triiodide, Nanotube-like, Sylilation of alcohols, Host-guest chemistry

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