Generation of previously unknown (alk-1-ynyl)organylthiocarbenes by the γ-elimination of HCl from 1-substituted 3-organyl-1-chloropropadienes under the action of bases

Previously unknown (alk-1-ynyl)organylthiocarbenes were generated from 1-substituted 1-chloro-3-organylthiopropadienes 1 as a result of HCl elimination under the action of potassium tert-butoxide