反応 #522326

反応方程式

Phenol

p-tert-octylphenol

paraformaldehyde

oxalic acid dihydrate

→

p-tert-octylphenol formaldehyde

反応条件

後処理

1. 1
   その他were reacted for 12 hours under water
2. 2
   その他to form a reaction intermediate
3. 3
   その他the reaction for 12 hours
4. 4
   その他87% of the formaldehyde used was consumed
5. 5
   その他reacted at 100° C. for 2 hours
6. 6
   温度at reduced pressure by heating it to a temperature of 165° C.

実験手順

In a glass reaction vessel, 206 g (1 mole) of p-tert-octylphenol, 59.0 g (1.57 moles) of 80% paraformaldehyde and 4.5 g of oxalic acid dihydrate were reacted for 12 hours under water reflux (100° C.) to form a reaction intermediate. After performing the reaction for 12 hours, 87% of the formaldehyde used was consumed. The mole ratio of formaldehyde to p-tert-octylphenol (Fa/POP) was 1.37:1. Phenol (70.5 g; 0.75 mole) was added to the reaction intermediate and reacted at 100° C. for 2 hours. The reaction mixture was dehydrated at atmospheric pressure and then at reduced pressure by heating it to a temperature of 165° C. to give a pale yellow transparent p-tert-octylphenol/formaldehyde co-condensate (softening point 98° C.).

出典