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Cycloaddition-elimination reactions of iminothiadiazolines with acetylenes: hypervalent sulfur intermediates

✍ Scribed by Kin-ya Akiba; Tohru Tsuchiya; Naoki Inamoto


Book ID
104225628
Publisher
Elsevier Science
Year
1976
Tongue
French
Weight
114 KB
Volume
17
Category
Article
ISSN
0040-4039

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Reaction of tetraazathiapentalene and th
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## Abstract Tetraazathiapentalene derivative 1 reacts with heterocumulenes such as diphenylketene (2) and 2‐pyridylisothiocyanate (5) to give heterocycles 3, 6 and 7 with elimination of methylisothiocyanate. The reactions of thiadiazolopyrimidine derivatives 8a‐b with ethoxycarbonyl isothiocyanate