Bisphenol A → 1,1,3,3-Tetramethylindan-5-ol

HRID 442475Notes

Reaction equation

HRID 442475 reaction equation
OC1[CH:7]=[CH:6][C:5]([C:8]([C:11]2[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=2)([CH3:10])[CH3:9])=CC=1.[CH3:18]C(=C)C.[Si]([O-])([O-])([O-])[O-].[Al+3].[Si]([O-])([O-])([O-])[O-].[Si]([O-])([O-])([O-])[O-].[Al+3].[Al+3].[Al+3]>>[OH:17][C:14]1[CH:15]=[C:16]2[C:11](=[CH:12][CH:13]=1)[C:8]([CH3:9])([CH3:10])[CH2:5][C:6]2([CH3:7])[CH3:18]

Participants

4

Reactant 3

HCID 6623Bisphenol AHCID 8255IsobutyleneHCID 21981400Tetraaluminum;trisilicate

Product 1

HCID 1045671,1,3,3-Tetramethylindan-5-ol

Procedure

114 g (0.5 mol) of 2,2-bis-(4-hydroxyphenyl)-propane, 90 g (1.6 mol) of isobutylene and 25 g of an aluminum silicate are stirred in an autoclave for 6 hours at around 300° C. under the naturally prevailing pressure. The catalyst is then filtered of while still hot. 41.8 g (44% of the theoretical) of 5-hydroxy-1,1,3,3-tetramethyl indane are isolated by fractional distillation in vacuo from the 170.9 g of reaction mixture.

Workup

  1. filtrationThe catalyst is then filtered of while still hot

Sources & evidence

ORD record
ord-da79cdd7916748b591c4d5013ca7e1ad
Source dataset
uspto-grants-1977_08
Patent number
US04045499

Reaction notes

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