ChemicalBook CAS DataBase List 2,2'-METHYLENEDIPHENOL

2,2'-METHYLENEDIPHENOL synthesis

15synthesis methods

Product Name:2,2'-METHYLENEDIPHENOL
CAS Number:2467-02-9
Molecular formula:C13H12O2
Molecular Weight:200.23

50-00-0 Synthesis

50-00-0
911 suppliers
$10.00/25g

108-95-2 Synthesis

108-95-2
796 suppliers
$14.00/25g

2467-02-9
72 suppliers
$40.00/250 mg

Yield: 56.1%

Reaction Conditions:

Stage #1:phenol with calcium silicate composite catalyst at 90; for 0.0833333 h;Inert atmosphere;
Stage #2:formaldehyd in water at 110; for 2 h;Inert atmosphere;Concentration;Reagent/catalyst;Temperature;

Steps:

10 (2) Catalytic synthesis of bisphenol F
Take 0.4 g of calcium silicate composite catalyst and 23.5 g of phenol into a three-necked flask, and fill with nitrogen to protect it.Stir at a temperature of 90 ° C for 5 minutes, mix well and add 2 g of a 37% by mass aqueous solution of formaldehyde, ie phenolThe molar ratio to formaldehyde is 10:1, and the mass ratio of catalyst to reaction mixture of phenol and formaldehyde is 0.015:1 at 110 °C.The reaction was refluxed for 2 hours, and after the reaction was completed, it was cooled to room temperature, and the organic phase was distilled under reduced pressure to recover phenol. After the distillation concentrate was cooled,The yield of bisphenol F was 43.3%, and the mass percentage of 2,2'-isomer bisphenol F was 91.2%.

References:

Hunan University;Xia Xinnian;Chen You;Xu Yingzhuang CN108892603, 2018, A Location in patent:Paragraph 0019; 0024; 0029; 0034; 0036; 0038; 0040; 0042

50-00-0 Synthesis

50-00-0
911 suppliers
$10.00/25g

108-95-2 Synthesis

108-95-2
796 suppliers
$14.00/25g

2467-02-9
72 suppliers
$40.00/250 mg