✦ LIBER ✦

Asymmetric Deprotonations: Lithiation of N -( tert -Butoxycarbonyl)indoline with sec -Butyllithium/(−)-Sparteine

✍ Scribed by Gross, Kathleen M. Bertini; Jun, Young M.; Beak, Peter

Book ID: 120624874
Publisher: American Chemical Society
Year: 1997
Tongue: English
Weight: 346 KB
Volume: 62
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo9708856

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: Asymmetric Deproton

ChemInform Abstract: Asymmetric Deprotonations: Lithiation of N-(tert-Butoxycarbonyl)indoline with sec-Butyllithium/(-)-Sparteine.

✍ K. M. BERTINI GROSS; Y. M . JUN; P. BEAK 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB

α-Lithiation-rearrangement of N-toluenes

α-Lithiation-rearrangement of N-toluenesulfonyl aziridines with sec-butyllithium and (−)-sparteine: opposite sense of asymmetric induction to epoxides

✍ Peter O'Brien; Clare M Rosser; Darren Caine 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 185 KB

The a-lithiation rearrangement of three cyclic N-toluenesulfonyl (tosyl) aziridines has been carried out using sec-butyllithium/(-)-sparteine. In each case, it was established that preferential lithiation of the S-aziridine stereocentre occurred. This is the opposite sense of asymmetric induction to