par Cochez, Yvan 
;Martin, Ricardo;Jespers, Jacques
Référence Israel Journal of Chemistry, 15, 1-2, page (29-32)
Publication Publié, 1976
;Martin, Ricardo;Jespers, JacquesRéférence Israel Journal of Chemistry, 15, 1-2, page (29-32)
Publication Publié, 1976
Article révisé par les pairs
| Résumé : | A systematic investigation of chemically induced asymmetric photosyntheses has been carried ou in the helicene series. The following points have been examined: the influence of the nature and of the position of the chiral inducing group in the precursor, the influence of the structure of the precursor and the effect of a double induction. The best asymmetric stereoselectivities were obtained: (a) when the photocyclisation gave rise to a helicene skeleton substituted at position 1‐; (b) at position 2‐, when an ester of optically pure 2‐hydroxymethyl[6]helicene was used as the chiral inducing group. Copyright © 1976 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim |
