Chlorodiphenylphosphine

• Chlorodiphenylphosphine
• P- chlorodiphenylphosphane
• Diphenylphosphanchlorid
• Phosphenylchlorid

Colorless to yellowish liquid with an unpleasant odor

Liquid

1.2 g · cm -3 ( 20 ° C)

14-16 ° C

320 ° C

1.3 hPa ( 20 ° C)

Violent decomposition with water

1,634

Risk

360 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Chlorodiphenylphosphane is an entity belonging to the group of phosphines chemical compound. She wears two phenyl groups and a chlorine atom at the central phosphorus bound.

Production

Technically, the synthesis of chlorodiphenylphosphine be accomplished above 280 ° C in the gas phase disproportionation of dichlorophenylphosphine temperatures.

The large-scale synthesis proceeds via the reaction of phosphorus trichloride with benzene at 600 ° C, which is initially formed dichlorophenylphosphine, the disproportionate reaction shown up to chlorodiphenylphosphane.

On a laboratory scale can be used for preparing for example the reaction of phosphorus trichloride with phenylzinc ( PhZnCl ) or diphenylmercury ( Ph2Hg ).

Another way consists in the reaction of triphenylphosphine with molecular chlorine.

Properties

Chlorodiphenylphosphane is a corrosive liquid which solidifies below a temperature of 14-16 ° C. With water, it reacts violently with formation of hydrogen chloride.

Use

The compound having the chlorine atom, a leaving group, which nucleophilic substitutions can be performed on it. By the use of Grignard reagents and nucleophilic alkylated and arylated phosphines are accessible.

It is used to phosphorus ligands such as dppm and dppp produce.