25203-33-2

Upstream product

• 107-19-7 propargyl alcohol 
• 2493-02-9 4-bromophenyl isocyanate 
• 313225-01-3 (1H-benzo[d][1,2,3]triazol-1-yl)(4-bromophenyl)methanone 

Downstream Products

• 121192-92-5 4-(diethylamino)-2-butynyl N-(4-bromophenyl)carbamate 
• 121192-93-6 4-bromo-2-butynyl N-(4-bromophenyl)carbamate 

Relevant academic research and scientific papers

An efficient one-pot synthesis of: N, N ′-disubstituted ureas and carbamates from N -acylbenzotriazoles

A facile and high-yielding one-pot synthesis of carbamates and N,N′-disubstituted symmetrical ureas from N-acylbenzotriazoles has been devised. It is believed that, the intermediate acyl-azide undergo Curtius rearrangement and in different solvents gives different products i.e. carbamates in alcohols and N,N′-disubstituted symmetrical urea in THF.

Dimethylsulfonium analogues of the muscarinic agent McN-A-343: [4-[[N-3 or 4-halophenyl)carbamoyl]oxy]-2-butynyl]dimethylsulfonium perchlorates

Some 3- and 4-bromophenyl and dimethylsulfonium analogues of the muscarinic agent [4-[[N-(3-chlorophenyl)-carbamoyl]oxy]-2-butynyl]trimethylammonium chloride (McN-Al-343) (1) were synthesized. The new compounds were assayed for effects on arterial blood p