Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Product Details
InChI:InChI=1/C15H15BO2/c1-15(2)13-6-4-3-5-11(13)12-8-7-10(16(17)18)9-14(12)15/h3-9,17-18H,1-2H3
The present invention relates to an arom...
The invention belongs to the field of or...
The present invention relates to an orga...
Two fluorene-based boronic acids, 9,9-di...
Trimethyl borate
2-bromo-9,9-dimethyl-9H-fluorene
9,9-dimethyl-9H-fluoren-2-yl-2-boronic acid
| Conditions | Yield |
|---|---|
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
n-butyllithium;
In
tetrahydrofuran;
at -78 ℃;
for 1h;
Inert atmosphere;
Trimethyl borate;
at 20 ℃;
for 1h;
|
80% |
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
n-butyllithium;
In
tetrahydrofuran; hexane;
at -78 ℃;
for 1h;
Inert atmosphere;
Cooling with ethanol-dry ice;
Trimethyl borate;
In
tetrahydrofuran; hexane;
at -78 ℃;
for 4h;
Inert atmosphere;
With
hydrogenchloride;
In
tetrahydrofuran; hexane;
at 0 ℃;
for 6h;
|
77% |
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
iodine; magnesium;
In
tetrahydrofuran;
for 1h;
Inert atmosphere;
Reflux;
Trimethyl borate;
In
tetrahydrofuran;
for 2h;
|
70% |
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
n-butyllithium;
In
tetrahydrofuran; hexane;
at -78 ℃;
for 1h;
Inert atmosphere;
Trimethyl borate;
In
tetrahydrofuran; hexane;
for 24h;
Inert atmosphere;
With
hydrogenchloride; water;
In
tetrahydrofuran; hexane;
Inert atmosphere;
|
62% |
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
n-butyllithium;
In
tetrahydrofuran; hexane;
at -78 ℃;
Inert atmosphere;
Trimethyl borate;
In
tetrahydrofuran; hexane;
at 20 ℃;
With
hydrogenchloride; water;
In
tetrahydrofuran; hexane;
|
2-bromo-9,9-dimethyl-9H-fluorene
9,9-dimethyl-9H-fluoren-2-yl-2-boronic acid
| Conditions | Yield |
|---|---|
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
n-butyllithium;
In
tetrahydrofuran;
at -78 ℃;
With
Trimethyl borate;
In
tetrahydrofuran;
for 0.5h;
With
hydrogenchloride; water;
In
tetrahydrofuran;
at 20 ℃;
for 1h;
|
77% |
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
n-butyllithium;
In
tetrahydrofuran; hexane;
at -78 - -30 ℃;
Inert atmosphere;
With
Trimethyl borate;
In
tetrahydrofuran; hexane;
at -78 - 20 ℃;
With
hydrogenchloride;
In
tetrahydrofuran; hexane; water;
for 0.5h;
|
69% |
|
2-bromo-9,9-dimethyl-9H-fluorene;
With
n-butyllithium;
In
tetrahydrofuran; hexane;
at -50 ℃;
for 0.5h;
With
boric acid tributyl ester;
In
tetrahydrofuran; hexane;
at -78 - 0 ℃;
for 5h;
With
hydrogenchloride;
In
tetrahydrofuran; hexane;
|
60% |
|
With
n-butyllithium; Trimethyl borate;
|
2-iodo-9,9-dimethyl-9H-fluorene
2-bromo-9,9-dimethyl-9H-fluorene
Trimethyl borate
9,9-dimethylfluorenyl-2-boronic acid dimethyl ester
C24H19N
C85H76
3-(9,9-dimethylfluoren-2-yl)-9-[4-(10-phenyl-9-anthryl)phenyl]-9H-carbazole
2-(2-methylsulfinylphenyl)-9,9-dimethylfluorene
