An ionic liquid-mediated expeditious route to the syntheses of diaryl sulfoxides
作者:Swapnil S. Mohile、Mahesh K. Potdar、Manikrao M. Salunkhe
DOI:10.1016/s0040-4039(02)02786-7
日期:2003.2
A fast and efficient protocol is proposed for the synthesis of diaryl sulfoxides in the ionic liquid 1-butyl-3-methylimidazolium chloroaluminate, [bmim]Cl.AlCl3, N=0.67, by employing arenes and thionyl chloride. The ionic liquid plays a dual role of Lewis acid catalyst and solvent, under ambient conditions, offering good yields of the product. The influence of the Lewis acidity of the ionic liquid on the extent of conversion is studied. (C) 2003 Elsevier Science Ltd. All rights reserved.
Highly Rapid and Direct Synthesis of Diaryl Sulfoxides
作者:B. P. Bandgar、S. N. Kinkar、V. T. Kamble、S. V. Bettigeri
DOI:10.1055/s-2003-41461
日期:——
Aromatic compounds react smoothly with thionyl chloride in the presence of 10 mol% of water at ambient temperature to afford the corresponding symmetrical diaryl sulfoxides in good to excellent yields with high regioselectivity.