The invention discloses a synthesis meth...
Disclosed herein are compositions and me...
The actinic ray-sensitive or radiation-s...
Disclosed herein are gemini surfactants,...
9,9-bis(4-hydroxyphenyl)fluorene
5,5'-isopropylidenebis(metaxylene-2,α,α'-triol)
Conditions | Yield |
---|---|
|
BPA
formaldehyd
5,5'-isopropylidenebis(metaxylene-2,α,α'-triol)
Conditions | Yield |
---|---|
With MCM-41 mesoporous sulfonic acid catalyst; In water; at 90 ℃; for 5h; Time; Large scale;
|
93% |
With sodium hydroxide;
|
|
BPA; With sodium hydroxide; at 65 ℃;
formaldehyd; In methanol; water; at 65 ℃; for 3h; pH=9 - 10;
|
|
With sodium hydroxide; at 65 ℃; for 2h; pH=9 - 10;
|
|
With potassium hydroxide; In methanol; water; at 50 ℃; for 6h;
|
17.4 g |
BPA
formaldehyd
9,9-bis(4-hydroxyphenyl)fluorene