128328-86-9Relevant academic research and scientific papers
Synthesis of -yl>ketene S,S-Acetals and Their Reaction with Hydrazine Hydrate
Doelling, Wolfgang,Herrmann, Cornelia,Augustin, Manfred
, p. 927 - 929 (2007/10/02)
The previously unknown ketene S,S-acetals 2, 3, and 4 are prepared by dithiocarboxylation reaction of methylene-active saccharin derivatives 1 in the presence of sodium hydride/carbon disulfide in dry DMF followed by alkylation.Compounds 2a, 3a, and 4a are treated with hydrazine hydrates (85percent) to give 2-hydrazono-3,3-bis(methylthio)propiophenone (6a) and methyl or ethyl pyruvate 6b or 6c, respectively.
