The reaction of (-)-1R- or (+)-1S-tricarbonyl(2-substituted benzaldehyde)chromium complexes with tert.-Bu methanesulfonamide dianion afforded, after decomplexation and intramol. cyclization, the enantiomerically pure N-tert-butyl-3-aryl-1,2-thiazetidine 1,1-dioxide derivs. The hydrolytic ring opening gave the corresponding enantiopure 1-aminosulfonic acid.
Stereoselective synthesis of beta-sultams using chiral tricarbonyl(eta-6-arene)chromium(0) complexes
C Baldoli;
1999
Abstract
The reaction of (-)-1R- or (+)-1S-tricarbonyl(2-substituted benzaldehyde)chromium complexes with tert.-Bu methanesulfonamide dianion afforded, after decomplexation and intramol. cyclization, the enantiomerically pure N-tert-butyl-3-aryl-1,2-thiazetidine 1,1-dioxide derivs. The hydrolytic ring opening gave the corresponding enantiopure 1-aminosulfonic acid.File in questo prodotto:
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Descrizione: Stereoselective synthesis of ?-sultams using chiral tricarbonyl(?6-arene)chromium(0) complexes
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