1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / -45 °C / Inert atmosphere 3.2: -45 - 20 °C / Inert atmosphere View Scheme

1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / -45 °C / Inert atmosphere 3.2: -45 - 20 °C / Inert atmosphere View Scheme

in water; tert-butyl alcohol Irradiationother solvents; without solvent; Product distribution;

1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / -45 °C / Inert atmosphere 3.2: -45 - 20 °C / Inert atmosphere View Scheme

1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / -45 °C / Inert atmosphere 3.2: -45 - 20 °C / Inert atmosphere View Scheme

1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / -45 °C / Inert atmosphere 3.2: -45 - 20 °C / Inert atmosphere 3.3: 1.5 h / 20 °C / Inert atmosphere View Scheme

1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / -45 °C / Inert atmosphere 3.2: -45 - 20 °C / Inert atmosphere View Scheme

1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / -45 °C / Inert atmosphere 3.2: -45 - 20 °C / Inert atmosphere View Scheme

1.1: N-chloro-succinimide / tetrachloromethane / 15 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran / Inert atmosphere; Cooling 2.2: Inert atmosphere; Cooling 3.1: 1,1-dimethylethylmagnesium chloride / tetrahydrofuran / 0.17 h / -45 °C / Inert atmosphere 3.2: 1.7 h / -45 - 20 °C / Inert atmosphere 3.3: 1.5 h / 20 °C / Inert atmosphere View Scheme

2,4-diphenyl-1,3-diselenadiphosphetane-2,4-diselenide in toluene 20 h; Heating;