protocol for the synthesis of Z-vinyl thiocyanates through ultrasound-promoted Brønstedacid ionic liquid-catalyzed hydrothiocyanation of activated alkynes under minimal solvent conditions has been developed. This process effectively avoids the use of organic solvents, metal catalysts and harsh reactionconditions. This reaction shows attractive characteristics such as operational simplicity, broad substrate
A mild and efficient protocol for the selective construction of Z-3-thiocyanatoacrylates is described. Various alkynoates reacted with KSCN and H2O by using cheap and recyclable deep eutectic solvent as the catalyst and reaction media to produce the corresponding products in excellent yields with mild reaction conditions and wide substrate scope. (C) 2019 Elsevier Ltd. All rights reserved.