Phosgene → Sodium Chloride

HRID 1871167Notes

Reaction equation

HRID 1871167 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-b275f94105a84e2981d252240f60e4bb
Source dataset
uspto-grants-2000_08
Patent number
US06103092

Reaction notes

Loading…