and (VII), undergo dehydration after conversion into the corresponding sodium carbonimidothioate salts followed by pyrolysis. The yields obtained by this method are comparable to those using the classical Chugaev elimination. -(MAJETICH*, G.; IRVIN, T. C.; THOMPSON, S. B.; Tetrahedron Lett. 56 (2015) 23, 3326-3329, http://dx.