4803-22-9

Upstream product

• 30169-27-8 6-chloro-4-phenyl-3,4-dihydro-1H-benzo[1,2,6]thiadiazine 2,2-dioxide 
• 1189-71-5 isocyanate de chlorosulfonyle 
• 719-59-5 5-chloro-2-aminobenzophenone 

Downstream Products

• 34659-78-4 6-chloro-1-methyl-4-phenyl-3,4-dihydro-1H-benzo[1,2,6]thiadiazine 2,2-dioxide 
• 34659-72-8 1-methyl-4-phenyl-3,4-dihydro-1H-benzo[1,2,6]thiadiazine 2,2-dioxide 
• 34659-75-1 6-chloro-1-methyl-4-phenyl-1H-benzo[1,2,6]thiadiazine 2,2-dioxide 

Relevant academic research and scientific papers

Access to Imidazolidine-Fused Sulfamidates and Sulfamides Bearing a Quaternary Center via 1,3-Dipolar Cycloaddition of Nonstabilized Azomethine Ylides

A 1,3-dipolar cycloaddition reaction of nonstabilized azomethine ylides and cyclic N-sulfonyl imines has been developed providing a workable access to imidazolidine-fused sulfamidates, sulfamides, and benzosultams bearing a quaternary center. Distinct from the available literature, this current work enables to make entry, for the first time, into the novel imidazolidine-fused sulfamidates and sulfamides. Furthermore, the selective imidazolidine ring opening accompanied by CH2 extrusion yielded tetra-substituted sulfamidates with an aminomethyl group. In addition, imidazolidine ring opening coupled with SO2 extrusion provided synthetically useful 1,2-diamines.