1: RuH2(CO)(PPh3)3; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene; hydrogen / deuterated toluene / 20 h / 135 °C / 760.05 Torr 2: potassium carbonate / acetone / 16 h / 20 °C 3: sodium hydroxide / tetrahydrofuran; water / 16 h / 20 °C View Scheme

RuH2(CO)(PPh3)3; hydrogen; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in deuterated toluene T=135°C; P=760.051 Torr; 20 h;

RuH2(CO)(PPh3)3; hydrogen; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in deuterated toluene T=135°C; P=760.051 Torr; 20 h;

1: 90 percent / K2CO3 / dimethylsulfoxide / 0.17 h / 25 °C 2: O2, Rose Bengal / acetonitrile / 13 °C / Irradiation View Scheme