Celite; pyridinium chlorochromate in dichloromethane 6 h; Ambient temperature; Yield given;

1: With n-butyllithium; di-isopropylmagnesium; (S)-(-)-1-(2-methoxynaphthalen-1-yl)naphthalene-2-ol in diethyl ether; benzene T=-40 - 20°C; Inert atmosphere; 2: With ammonium chloride in water; benzene Inert atmosphere; optical yield given as percent eeenantioselective reaction;