Phosgene → Carbonic acid;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol

HRID 371169Notes

Reaction equation

[CH3:1][C:2]([C:11]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=1)([C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[CH:6][CH:5]=1)[CH3:3].[OH-:18].[Na+].C(C1C=C[C:27]([OH:30])=CC=1)(C)(C)C.C(Cl)(Cl)=[O:32]>C(Cl)Cl.O>[CH3:3][C:2]([C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[CH:6][CH:5]=1)([C:11]1[CH:12]=[CH:13][C:14]([OH:17])=[CH:15][CH:16]=1)[CH3:1].[C:27]([OH:30])([OH:32])=[O:18]

Participants

Conditions

Temperature: 25 °C

Procedure

Into a mixture of 272.4 parts by weight of 4,4'-dihydroxy diphenyl-2,2-propane (bisphenol A), 145 parts by weight of sodium hydroxide, 1045 parts by weight of deionized water, 1330 parts by weight (1.0 liter) of methylene chloride and 5.55 parts by weight p-tertbutylphenol, 150 parts by weight of carbonyl chloride were added over a period of 0.5 hour with stirring and at a temperature of 25° C. This resulted in solution of bisphenol A polycarbonate oligomers in methylene chloride at a concentration of about 23 percent by weight in the organic phase

Workup

additionwere added over a period of 0.5 hour

Sources & evidence

ORD record: ord-7c6ea5b2c04f4405a9cf396597df751b
Source dataset: uspto-grants-1985_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04529791

Reaction notes

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