Zhaopeng Liu, N. Shibata, Y. Takéuchi
Jan 23, 2002
Citations
0
Influential Citations
22
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
o-Lithiation of N-tert-butylbenzenesulfonamide followed by reaction with ketones gave carbinol sulfonamides, which underwent TMSCl–NaI–MeCN reagent mediated cyclization to afford 3,3-disubstituted and spiro-2,3-dihydrobenzo[d]isothiazole-1,1-diones in high yields.