Phosphine Free Catalytic Selective Dehydrative Etherification of Secondary Alcohols by Using Ag(I)-Nhc Complexes

Gangwar, Manoj Kumar; Butcher, Ray J.

doi:10.2139/ssrn.3574466

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Phosphine Free Catalytic Selective Dehydrative Etherification of Secondary Alcohols by Using Ag(I)-Nhc Complexes

6 Pages Posted: 13 Apr 2020

See all articles by Manoj Kumar Gangwar

Manoj Kumar Gangwar

Indian Institute of Technology (IIT), Bombay - Department of Chemistry

We herein report the phosphine-free catalytic selective dehydrative etherification of secondary alcohols into symmetrical/ unsymmetrical ethers under mild conditions by using well-defined, air-stable, Ag(I)-NHC complexes. We have synthesized several novel Ag(I) complexes bearing NHC- ligands, namely, [(S)-7-(R1)-6-(R2)2-2-(R3)-6,7-dihydro-4H-[1,2,3]triazolo[5,1-c][1,4]oxazin-3-ylidene}AgCl (1−2)b, (Scheme 3), were isolated for the first time and structurally characterized through various spectroscopic techniques including single crystal X-ray diffraction analyses. All of these novel Ag(I)-NHC complexes have shown an excellent catalytic activity to produce value added ethers from various secondary alcohols through dehydration process by using Ag(I)-NHC catalysts under mild conditions, respectively.

Keywords: Silver, NHC, Sec-alcohols, Ethers

Suggested Citation: Suggested Citation

Gangwar, Manoj Kumar and Butcher, Ray J., Phosphine Free Catalytic Selective Dehydrative Etherification of Secondary Alcohols by Using Ag(I)-Nhc Complexes. Available at SSRN: https://ssrn.com/abstract=3574466 or http://dx.doi.org/10.2139/ssrn.3574466