Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Product Details
Specific compounds represented by formul...
The invention relates to a compound, app...
The present invention relates to the fie...
4-phenyldibenzo[b,d]thiophene
4-bromo-6-phenyldibenzo[b,d]thiophene
| Conditions | Yield |
|---|---|
|
4-phenyldibenzo[b,d]thiophene;
With
(2-methylpropyl)lithium;
In
tetrahydrofuran;
at -78 - -40 ℃;
for 0.5h;
Inert atmosphere;
With
ethylene dibromide;
In
tetrahydrofuran;
at -78 - 20 ℃;
for 6h;
Inert atmosphere;
|
75% |
|
4-phenyldibenzo[b,d]thiophene;
With
n-butyllithium;
In
tetrahydrofuran; hexane;
at -78 - 0 ℃;
for 3.41667h;
Inert atmosphere;
With
ethylene dibromide;
In
tetrahydrofuran; hexane;
at -78 - 20 ℃;
Inert atmosphere;
|
70.6% |
|
4-phenyldibenzo[b,d]thiophene;
With
sec.-butyllithium;
In
tetrahydrofuran;
at -78 - -60 ℃;
Inert atmosphere;
With
ethylene dibromide;
In
tetrahydrofuran;
at 20 ℃;
for 4h;
|
18 g |
bromobenzene
4-bromo-6-phenyldibenzo[b,d]thiophene
| Conditions | Yield |
|---|---|
|
Multi-step reaction with 2 steps
1.1: potassium carbonate; tetrakis(triphenylphosphine) palladium(0) / toluene; ethanol; water / 18 h / 100 °C / Inert atmosphere
2.1: sec.-butyllithium / tetrahydrofuran / -78 - -60 °C / Inert atmosphere
2.2: 4 h / 20 °C
With
tetrakis(triphenylphosphine) palladium(0); sec.-butyllithium; potassium carbonate;
In
tetrahydrofuran; ethanol; water; toluene;
|
4-phenyldibenzo[b,d]thiophene
bromobenzene
4-dibenzothiophene boronic acid
4-bromodibenzothiophene