885722-42-9Relevant articles and documents
Diastereospecific intramolecular Ullmann couplings: Unique chiral auxiliary for the preparation of 3,3′-disubstituted MeO-BIPHEP derivatives
Gorobets,McDonald,Keay
, p. 1483 - 1485 (2006)
A chiral auxiliary is described that provides only one diastereomer during Intramolecular Ullmann couplings. Treatment of five Ullmann coupling precursors with Cu powder in DMF at 115 °C provides 2,2′,3,3′,6,6′- hexasubstituted 1,1′-biphenyls as single di