ChemicalBook CAS DataBase List 2,2-Bis(4-hydroxyphenyl)butane

2,2-Bis(4-hydroxyphenyl)butane synthesis

4synthesis methods

Product Name:2,2-Bis(4-hydroxyphenyl)butane
CAS Number:77-40-7
Molecular formula:C16H18O2
Molecular Weight:242.31

Using phenol and 2-butanone as raw materials, and with sulfuric acid as the catalytic agent, under heating conditions, through condensation reaction, can obtain2,2-Bis(4-hydroxyphenyl)butane.

78-93-3
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108-95-2 Synthesis

108-95-2
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77-40-7
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$10.00/1g

Yield:77-40-7 100%

Reaction Conditions:

with hydrogenchloride at 15 - 20; for 3 h;

Steps:

1

Gaseous hydrogen chloride was passed gradually into a mixture of two moles phenol and one mole of ketone while stirring and maintaining the mixture at temperature between 15-2O⁰C. A total of hydrogen chloride was added in a period of 3 hours. Reaction mixture color change is observed. The mixture was then dissolved with heating in chlorobenzene and washed with two portions of nearly boiling water to remove hydrogen chloride there from the chlorobenzene layer was next neutralized. Water, chlorobenzene and unreacted phenol were distilled off at atmospheric pressure. The pressure was then reduced and the distillation continued until phenol no longer distilled from the mixture. The yield of the reaction is quantitative.

References:

WO2008/117308,2008,A2 Location in patent:Page/Page column 13, 25

80-05-7 Synthesis