ABRAMOVITCH R. A.; MORE K. M.; SHINKAI I.; SRINIVASAN P. C., J. CHEM. SOC. CHEM. COMMUNS <CCOM-A8>, 1976, NO 19, 771-772
作者:ABRAMOVITCH R. A.、 MORE K. M.、 SHINKAI I.、 SRINIVASAN P. C.
DOI:——
日期:——
Generation of α-Iminyl Radicals from α-Bromo Cyclic <i>N</i>
-Sulfonylimines and Application to Coupling with Various Radical Acceptors Using a Photoredox Catalyst
Visible‐light‐induced generation of α‐iminyl radicals was accomplished using α‐bromo cyclic N‐sulfonylimines and photoredox catalysts such as erythrosine B or Ru(bpy)3(PF6)2. The generated α‐iminyl radical was utilized for various radical reactions with allylation reagents, silyl enol ethers and allenyl stannane to give the corresponding coupling products. Furthermore, atom transfer radical addition
Ring-expansion of 3-bromoalkyl-1,2-benzisothiazole 1,1-dioxides to (2H)-1,2-benzothiazin-4(3H)-one 1,1-dioxides
作者:Rudolph A. Abramovitch、Kundalika M. More、Ichiro Shinkai、Panayencheri C. Srinivasan
DOI:10.1039/c39760000771
日期:——
A simple three-step synthesis of (2H)-1,2-benzothiazin-4(3H)-one 1,1-dioxides from saccharin has been achieved by the base-mediated ring-expansion of 3-(α-bromoalkyl)-1,2-benzisothiazole 1,1-dioxides.