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Triphenyl phosphite is the organophosphorus compound with the formula P(OC 6 H 5) 3. It is a colourless viscous liquid. Preparation. Triphenylphosphite is prepared ...
The phosphorus-containing product is triphenylphosphine sulfide, Ph 3 PS. This reaction can be employed to assay the "labile" S 0 content of a sample, say vulcanized rubber. Triphenylphosphine selenide, Ph 3 PSe, may be easily prepared via treatment of PPh 3 with red (alpha-monoclinic) Se. Salts of selenocyanate, SeCN −, are used as the Se 0 ...
Triphenyl phosphate (TPhP) is the chemical compound with the formula OP(OC 6 H 5) 3. It is the simplest aromatic organophosphate. This colourless solid is the ester (triester) of phosphoric acid and phenol. It is used as a plasticizer and a fire retardant in a wide variety of settings and products. [3]
The phosphorus reagent can be used in catalytic quantities. [5] [6] The corresponding alkyl bromide can also be synthesised by addition of lithium bromide as a source of bromide ions. A more sustainable version of the Appel reaction has been reported, which uses a catalytic amount of phosphine that is regenerated with oxalyl chloride. [7]
In the case of trimethylphosphine, triphenyl phosphite is used in place of the highly electrophilic PCl 3: [6] 3 CH 3 MgBr + P(OC 6 H 5) 3 → P(CH 3) 3 + 3 C 6 H 5 OMgBr. Slightly more elaborate methods are employed for the preparation of unsymmetrical tertiary phosphines, with the formula R 2 R'P. The use of organophosphorus-based ...
Triphenylphosphine dichloride, (C 6 H 5) 3 PCl 2, is a chlorinating agent widely used in organic chemistry. Applications include the conversion of alcohols and ethers to alkyl chlorides, the cleavage of epoxides to vicinal dichlorides and the chlorination of carboxylic acids to acyl chlorides. [2]
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Triphenylphosphine oxide (often abbreviated TPPO) is the organophosphorus compound with the formula OP(C 6 H 5) 3, also written as Ph 3 PO or PPh 3 O (Ph = C 6 H 5).It is one of the more common phosphine oxides.