34241-53-7Relevant academic research and scientific papers
Synthesis of spiro[4.4]thiadiazole derivatives: Via double 1,3-dipolar cycloaddition of hydrazonyl chlorides with carbon disulfide
Chen, Rongxiang,Guo, Dong-Guang,Li, Yan-Li,Pan, Peng-Tao,Sun, Aili,Wang, Kai-Kai
, p. 18404 - 18407 (2021)
An operationally simple and convenient synthesis method toward a series of diverse spiro[4.4]thiadiazole derivatives via double [3 + 2] 1,3-dipolar cycloaddition of nitrilimines generated in situ from hydrazonyl chlorides with carbon disulfide has been ac
Cycloaddition Reaction of 1,4,2-Dithiazole-5-thiones
Greig, Derek J.,McPherson, Michael,Paton, Michael R.,Crosby, John
, p. 1205 - 1208 (2007/10/02)
1,4,2-Dithiazole-5-thiones can act either as the 2-atom or the 3-atom component in 2+3-cycloadditions.Benzonitrile N-phenylimine, generated in situ by dehydrochlorination of N-phenylbenzohydrazonoyl chloride, reacts at the exocyclic C=S double bond forming the thiadiazolethione (17) and the spiro compound (18) by collapse of the initial cycloadduct (19) and further 1,3-dipolar cycloaddition.The corresponding reaction with ethyl azidoformate yields a 5-ethoxycarbonylimino-1,4,2-dithiazole.On treatment-with dimethyl acetylenedicarboxylate and ethylcyanoformate the dithiazolethione itself acts as a 1,3-dipole forming 1,3-dithiole and 1,4,2-dithiazolethiones with expulsion of a nitrile fragment.
