1: in diethyl ether T=-78°C; 3 h; 2: With benzoyl chloride in diethyl ether T=20°C; 8 h;

in benzene byproducts: H2O; under Ar, soln. of allylboronic acid in C6H6 treated with 2-propanol (2 equiv), heated to reflux until evolution of H2O completed (Dean-Stark trap); fractionally distd. (bp 62-64°C, 40 mmHg);

(S)-BIPHEN in toluene T=0°C; 15 h;

1: in diethyl ether; hexane T=20°C; 3 h; 2: With sodium hydroxide in diethyl ether; hexane 3 h; Heating;

RuCl2(tricyclohexylphosphine)2(benzylidene) in dichloromethane T=65°C; 18 h; Inert atmosphere;