1.
Org Lett
; 4(13): 2121-4, 2002 Jun 27.
Article
in English
| MEDLINE
| ID: mdl-12074647
ABSTRACT
[reaction: see text] A variety of gamma,delta-unsaturated carbene complexes that feature a stereogenic center at the beta-carbon couple with 2-ethynylbenzaldehyde to afford hydrophenanthrene derivatives with a high degree of stereoinduction. The direction of stereoinduction is opposite for examples where the stereogenic center is acyclic vs examples where it is within a ring.