1196-55-0Relevant articles and documents
Arylation of 8-acetoxyoctalenone in a nickel-catalyzed coupling reaction with lithium arylborates
Kobayashi, Yuichi,Ito, Michiko
, p. 3393 - 3397 (2000)
In order to find a suitable organometallic compound and a catalyst for the arylation of 8-acetoxyoctalenone 4 (a stereoisomeric mixture of 4α and 4β), phenylation was first investigated with PhZnX (7: X = Cl; 8: X = Br)/Pd or Ni cat., PhSnBu3 (9)/Pd cat. and LiCl, and [PhB(Bu)(OCHMeCH-MeO)]Li (10a)/Ni cat. Borate 10a provided the desired product 11a with high stereoselectivity. The stereochemical outcome was irrespective of the stereochemistry of the acetoxy group in 4. Four more aryl groups, p-R-C6H4 (R = Me, MeO, Ph, and Me2N), were installed stereoselectively with this method.