Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Product Details
To suppress concentration quenching and ...
In this work, we designed and synthesize...
Effective synthesis of organic semicondu...
Provided is a novel heterocyclic compoun...
The disclosure provides a delayed fluore...
The present invention relates to an orga...
The present invention provides an organi...
2-bromofluoren-9-one
phenol
2-bromo-spiro[fluorene-9,9′-xanthene]
Conditions | Yield |
---|---|
In
methanesulfonic acid;
at 152 ℃;
for 24h;
Inert atmosphere;
|
90% |
With
trichlorophosphate;
at 120 ℃;
|
87% |
With
trichlorophosphate;
at 120 ℃;
|
87% |
With
trichlorophosphate;
at 120 ℃;
|
87% |
With
methanesulfonic acid;
at 150 ℃;
for 12h;
Inert atmosphere;
|
77% |
With
methanesulfonic acid;
at 150 ℃;
for 8h;
|
75% |
With
methanesulfonic acid;
at 150 ℃;
for 24h;
|
72% |
With
methanesulfonic acid;
for 20h;
Reflux;
|
71% |
With
methanesulfonic acid;
at 150 ℃;
for 8h;
Inert atmosphere;
|
60% |
With
methanesulfonic acid;
at 150 ℃;
for 8h;
Inert atmosphere;
|
60% |
With
methanesulfonic acid;
at 160 ℃;
for 12h;
|
55% |
With
methanesulfonic acid;
at 150 ℃;
Inert atmosphere;
|
C25H17BrO2
2-bromo-spiro[fluorene-9,9′-xanthene]
Conditions | Yield |
---|---|
With
hydrogenchloride; acetic acid;
In
water;
at 75 ℃;
for 6h;
|
45 g |
2-bromofluoren-9-one
phenol
1-bromo-2-phenoxybenzene