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Stereoselective synthesis of β-sultams using chiral tricarbonyl(η6-arene)chromium(0) complexes

✍ Scribed by Clara Baldoli; Paola Del Buttero; Dario Perdicchia; Tullio Pilati

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
471 KB
Volume
55
Category
Article
ISSN
0040-4020

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✦ Synopsis

The reaction of (-)lg or (+)-IS-tricarbonyl(2-substituted benzaldehyde)chromium complexes with tertbutylmethanesulfonamide dianion afforded, after decomplexation and intramolecular cyclization, the enantiomerically pure N-tert-butyl-3-(2-phenyl substituted)-1,2-thiazetidine 1,1 dioxide derivatives. The hydrolytic ring opening gave the corresponding enantiopure [3-aminosulfonic acid.

📜 SIMILAR VOLUMES

Asymmetric oxidation of sulfenyl substit
Asymmetric oxidation of sulfenyl substituted tricarbonyl(η6-arene)chromium(0) complexes
✍ Siân L. Griffiths; Stéphane Perrio; Susan E. Thomas 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 283 KB

Oxidation of sulfenyl substituted tricarbonyl(ll6-arene)chrom(o) complexes with Ti(OP& I diethyl lartraw I H20 I cumene hydroperoxide (2:4:2:1.3) gives sulfinyl suhstitured tricarbonyl(q6arcne)chromium(O) complexes in 60.73% yield and 111.86% e.e. (29.60% yield and 90.t95t c e. after cryslallisation