Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Cross-linked polybenzimidazole membranes...
Epoxy compounds, compositions, materials...
The invention discloses a liquid crystal...
A method of producing an epoxy compound,...
PROBLEM TO BE SOLVED: To provide a proce...
3,3′,5,5'-tetramethyl-4,4′-bis(2-propen-1-yloxy)-1,1'-biphenyl
3,3′,5,5′-tetramethylbiphenyl-4,4′-diglycidyl ether
| Conditions | Yield |
|---|---|
|
With
sodium tungstate (VI) dihydrate; phosphoric acid; N-methyl-N,N,N-tri-[2-(pentylcarbonyloxy)ethyl]ammonium hydrogen sulfate; dihydrogen peroxide;
In
water; toluene;
at 65 - 68 ℃;
for 12h;
Reagent/catalyst;
Solvent;
Inert atmosphere;
|
81% |
|
With
sodium tungstate (VI) dihydrate; trioctylmethylammonium acetate; sodium dihydrogenphosphate dihydrate; dodecatungstophosphoric acid hydrate; dihydrogen peroxide;
In
5,5-dimethyl-1,3-cyclohexadiene; water; toluene;
at 20 - 60 ℃;
for 41h;
pH=6;
Inert atmosphere;
|
3,3',5,5'-tetramethyl-4,4'-dihydroxybiphenyl
epichlorohydrin
3,3′,5,5′-tetramethylbiphenyl-4,4′-diglycidyl ether
| Conditions | Yield |
|---|---|
|
With
sodium hydroxide;
at 80 ℃;
|
|
|
|
|
|
sodium hydroxide;
|
|
|
3,3',5,5'-tetramethyl-4,4'-dihydroxybiphenyl; epichlorohydrin;
With
N-butyl-N,N-dipropylbutane-1-ammonium bromide;
In
methanol;
at 50 ℃;
for 5h;
Inert atmosphere;
With
sodium hydroxide;
In
methanol;
at 20 - 60 ℃;
for 5h;
|
1-chloro-3-[4'-(3-chloro-2-hydroxy-propoxy)-3,5,3',5'-tetramethyl-biphenyl-4-yloxy]-propan-2-ol
3,3',5,5'-tetramethyl-4,4'-dihydroxybiphenyl
epichlorohydrin
3,3′,5,5'-tetramethyl-4,4′-bis(2-propen-1-yloxy)-1,1'-biphenyl
