PEG-400 and glycerol were successfully used as recyclable solvents for the synthesis of several organylthioenynes in good to excellent yields and high selectivity using solid supported catalyst (KF/Al2O3). This easy, general and improved method furnishes the corresponding alkenyl sulfides preferentially with Z configuration. The catalytic system and the glycerol or PEG-400 can be reused up to three times without previous treatment with comparable activity. © 2010 Elsevier Ltd. All rights reserved.
Alves, D., Sachini, M., Jacob, R. G., Lenardão, E. J., Contreira, M. E., Savegnago, L., & Perin, G. (2011). Synthesis of (Z)-organylthioenynes using KF/Al2O 3/solvent as recyclable system. Tetrahedron Letters, 52(1), 133–135. https://doi.org/10.1016/j.tetlet.2010.11.009