A practical procedure for the multigram synthesis of the SuperQuat chiral auxiliaries

Synlett

Volumn , Issue 5, 1998, Pages 519-521

  Bull, Steven D ^a   Davies, Stephen G ^a   Jones, Simon ^a   Polywka, Mario E C ^b   Shyam Prasad, R ^a   Sanganee, Hitesh J ^a  

^a UNIVERSITY OF OXFORD   (United Kingdom)

^b Oxford Asymmetry Ltd   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001327462     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1998-1700     Document Type: Article

References (9)

1. Evans, D. A. Aldrichimica Acta, 1982, 15, 23.
2. Ager, D. J.; Prakash, I; Scaad, D. R. Aldrichimica Acta, 1997, 30, 3.
3. Evans, D. A.; Britton, T. C.; Ellman, J. A. Tetrahedron Lett., 1987, 28, 6141.
4. Davies, S. G.; Sanganee, H. J. Tetrahedron: Asymmetry, 1995, 6, 671.
5. Sanganee, H. J. D. Phil thesis, Oxford, 1997.
6. A similar racemisation process has been reported during addition of phenyl lithium to the benzyl carbamates of α-amino acids; Buckley III, T. F.; Rapoport H. J. Am. Chem. Soc. 1981, 103, 6157;
7. Delair, P.; Einhorn, C.; Einhorn, J.; Luche, J. L. J. Org. Chem., 1994, 59, 4680.
8. 8).
9. Gas chromatographic analysis was carried out over a Chirasil valine stationary phase.