54300-41-3

Upstream product

• 462-06-6 fluorobenzene 
• 108-90-7 chlorobenzene 
• 3497-00-5 phenylthiophosphonic acid dichloride 
• 71-43-2 benzene 

Downstream Products

• 54300-33-3 bis(4-chlorophenyl)(phenyl)phosphine oxide 

Relevant academic research and scientific papers

Process for the preparation of bifunctional tertiary aromatic phosphine sulfides

Tertiary aromatic phosphine sulfides of the formula STR1 wherein X=F, Cl or Br, are prepared by means of a Friedel-Crafts reaction of (a) PCl3 with benzene and--after the addition of sulfur--also with fluorobenzene, chlorobenzene or bromobenzene, or (b) PSCl3 with fluorobenzene, chlorobenzene or bromobenzene and subsequently also with benzene; Friedel-Crafts catalysts are Al halides, especially AlCl3. The products are used as end products and intermediates in a variety of areas, such as, for example, the sectors of plant protection and polymers.

ARYLIERUNG VON THIOPHOSPHORCHLORIDEN IN GEGENWART VON ALUMINIUM CHLORID

Differently substituted tertiary phosphine-sulfides are prepared in an one-pot-synthesis by reaction of PCl3 with benzene and sulfur via the intermediate phenylthiophosphonic-dichloride or by arylation of PSCl3 or organothiophosphonic-dichlorides via the isolable intermediates diorganothiophosphinic-chlorides.AlCl3 is used as catalyst.