Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Product Details
The invention discloses a preparation me...
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formaldehyd
methanedisulfonic acid
methylene methane disulfonate
| Conditions | Yield |
|---|---|
|
With
acetic anhydride; phosphorus trichloride;
at 120 ℃;
for 5h;
Reagent/catalyst;
Temperature;
Time;
|
88.72% |
|
In
toluene;
at 120 ℃;
for 2h;
Temperature;
Solvent;
|
81.2% |
|
With
phosphorus pentoxide;
In
1,2-dichloro-ethane;
at 84 ℃;
for 2h;
|
76.52% |
|
With
phosphorus pentoxide;
at 120 ℃;
for 1h;
|
47% |
methanedisulfonic acid
![[(chlorosulfonyl)oxy]methyl sulfurochloridate](/upload/2026/7/545eac06-d5d2-4739-89a8-bc943bb0552a.png)
[(chlorosulfonyl)oxy]methyl sulfurochloridate
methylene methane disulfonate
| Conditions | Yield |
|---|---|
|
methanedisulfonic acid;
With
poly(4-vinylpyridine);
In
N,N-dimethyl-formamide;
at 20 ℃;
for 0.5h;
[(chlorosulfonyl)oxy]methyl sulfurochloridate;
In
1,2-dichloro-ethane;
at 55 ℃;
for 5h;
Reagent/catalyst;
Temperature;
|
92% |
methanedisulfonic acid
diiodomethane
disilver methanedisulfonate
formaldehyd
