Phosgene → Sodium Chloride

HRID 2230750Notes

Reaction equation

HRID 2230750 reaction equation
[C:1](Cl)([Cl:3])=[O:2].[OH-:5].[Na+:6].[OH:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]([C:17]2[CH:22]=[CH:21][C:20]([OH:23])=[CH:19][CH:18]=2)([CH3:16])[CH3:15])=[CH:10][CH:9]=1>[Cl-].[Na+].O.ClCCl>[CH3:16][C:14]([C:11]1[CH:12]=[CH:13][C:8]([OH:7])=[CH:9][CH:10]=1)([C:17]1[CH:18]=[CH:19][C:20]([OH:23])=[CH:21][CH:22]=1)[CH3:15].[C:1]([OH:2])([OH:7])=[O:5].[Cl-:3].[Na+:6]

Participants

7

Reactant 3

HCID 6371Phosgene2×HCID 6623Bisphenol AHCID 14798Sodium Hydroxide2×

Product 2

HCID 5234Sodium ChlorideHCID 159987Carbonic acid;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 57417360Sodium chloride; waterSolvent2×

Procedure

The manufacture of condensation polymers often produces a brine solution as a by-product. For example, a brine solution is produced in the manufacture of polycarbonate resins through the reaction of phosgene with at least one bisphenol compound in an organic solvent in the presence of aqueous sodium hydroxide. A common example is the reaction of bisphenol A with phosgene in dichloromethane in the presence of aqueous sodium hydroxide to produce bisphenol A polycarbonate and sodium chloride solution.

Workup

  1. customThe manufacture of condensation polymers

Sources & evidence

ORD record
ord-84736a302e08479ca7693a470c0eaa98
Source dataset
uspto-grants-2002_07
Patent number
US06426008B2

Reaction notes

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