21344-47-8

Upstream product

• 21344-24-1 5-bromothieno[2,3-b]pyridine 
• 21344-28-5 thieno[2,3-b]pyridin-5-amine 
• 25695-72-1 α,α-bis(4-thieno<2,3-b>pyridylamino)toluene 
• 21344-35-4 N-thieno[2,3-b]pyridin-5-yl-acetamide 

Downstream Products

• 25695-72-1 α,α-bis(4-thieno<2,3-b>pyridylamino)toluene 
• 25557-53-3 4-(4-dimethylaminobenzylamino)thieno<2,3-b>pyridine 
• 25557-52-2 (4-dimethylamino-benzylidene)-thieno[2,3-b]pyridin-4-yl-amine 
• 25557-62-4 4-(4-nitrobenzylideneimino)thieno<2,3-b>pyridine 

Relevant academic research and scientific papers

Chemistry of Thienopyridines. XXXV. Mass Spectral Fragmentation Patterns of Some Secondary Amines and Related Imines

The mass spectra of some secondary amines and aldimines in the thienopyridine (3) system are presented. α,α-Bis(4-thienopyridylamino)toluene (1) undergoes (a) electron impact-induced dissociation at 80 deg C to give the spectrum of 4-amino-3 (3b) and (b) thermal dissociation at 200 deg C to give a composite spectrum of 3b and its benzylidene derivative.Spectra of benzylamino and dimethylaminobenzylamino derivatives of 3 are dominated by benzyl-type fragments, while benzylideneimino derivatives show more varied fragmentation.