Phenyl phosphorus dichloride → Chlorodiphenylphosphine

HRID 247536

Reaction equation

HRID 247536 reaction equation
C1(P(=O)(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.P(Cl)(Cl)Cl.[Cl:25][P:26](=[O:39])([C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.ClP(Cl)C1C=CC=CC=1>>[Cl:25][P:26](=[O:39])([C:33]1[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=1)[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.[Cl:25][P:26]([C:33]1[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=1)[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1

Participants

6

Reactant 4

HCID 12573Phenyl phosphorus dichloride2×HCID 13097Triphenylphosphine Oxide3×HCID 24387Phosphorus trichloride2×HCID 73910Diphenylphosphinic chloride

Product 2

HCID 66180ChlorodiphenylphosphineHCID 73910Diphenylphosphinic chloride

Procedure

In the case where X=0 and m=3 in the compounds of the formula (A), the compound is triphenylphosphine oxide, when n=3 in the compounds of the formula (B), the result is phosphorus trichloride. The reaction of triphenylphosphine oxide with phosphorus trichloride initially gives chloro(diphenyl)phosphine oxide (=diphenylphosphinic chloride) and dichloro(phenyl)phosphine: ##STR2## The dichloro(phenyl)phosphine can react with further triphenylphosphine oxide to give chloro(diphenyl)phosphine oxide (=diphenylphosphinic chloride) and chloro(diphenyl)phosphine: ##STR3## The more phenyl groups in the starting compounds (A) and the more Cl in the other starting compounds (B), the better the reaction takes place. No exemplary embodiment of the reaction of, for example, dichloro(phenyl)phosphine oxide (=compound of the formula (A) with X=0 and m=1; =phenylphosphonic dichloride) with chloro(diphenyl)phosphine (=compound of the formula B) with n=1) is contained in the German patent.

Sources & evidence

ORD record
ord-cab7c2b4669e423d869c973f0dff93c5
Source dataset
uspto-grants-1987_11
Patent number
US04708824

Linked notes

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