Triphenyl phosphite → HCID 131711934, compound

HRID 1733181Notes

Reaction equation

HRID 1733181 reaction equation
[Br:1][Br:2].[P:3]([O:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)([O:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[O:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1>C(Cl)Cl>[P:3]([O:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)([O:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)[O:4][C:5]1[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=1.[Br:1][Br:2]

Participants

4

Reactant 2

HCID 7540Triphenyl phosphiteHCID 24408Bromine

Product 1

HCID 131711934HCID 131711934, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of 1.6 gm of bromine in 30 ml of methylene chloride at -45° C. was added a solution of 3.1 grams of triphenyl phosphite in 5 ml of methylene chloride. After warming the product solution to room temperature it was studied by 31P nuclear magnetic resonance (nmr). The 31P nmr spectrum initially indicated 1 major component having a signal at -3.7 ppm relative to the phosphoric acid 31P resonance signal. This signal decreased in intensity with time as a signal at 22.4 ppm increased in intensity. From the 31P nmr data the half-life (t 1/2) for the initial product was determined to be about 39 hours.

Workup

  1. temperatureincreased in intensity

Sources & evidence

ORD record
ord-96b001cb70144b248d8dd6ae650df9cc
Source dataset
uspto-grants-1980_12
Patent number
US04240988

Reaction notes

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