131980-68-2

Upstream product

• 908093-98-1 diazodiphenylmethane 
• 131980-57-9 3,3-diphenyl-3H-pyrazolo<6,7-c>-1,3λ⁴δ²,5,2,4-trithiadiazepine 
• 131980-67-1 6-phenyl-10bH-indeno-<1,2-f>-1,3λ⁴δ²,5,2,4-trithiadiazepine 

Relevant academic research and scientific papers

Organic Heterocyclothiazenes. Part 15. Pyrazolotrithiadiazepines and Their Rearrangement to 1,2,3-Dithiazoles

Treatment of 6-bromotrithiadiazepine 1 with Huenig's base in the presence of diphenyldiazomethane 2a gives the hetaryne cycloadduct 3a.Neat thermolysis of this at 210 deg C results in very rapid loss of N2 and 'HNS' in a deep-seated rearrangement to give

Pyrazolotrithiadiazepines and their Unexpected Rearrangement to 1,2,3-Dithiazoles

Treatment of 6-bromotrithiadiazepine (1) with Huenig's base in the presence of diaryldiazomethanes (2) gives the trithiadiazepyne cycloadducts (3) which undergo a deep-seated thermal rearrangement to give fused 1,2,3-dithiazoles (4), for which a mechanism