Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Product Details
The invention relates to a synthesis met...
The invention discloses a method for pre...
The invention relates to a novel energy-...
The invention relates to an energy-savin...
dermatan sulfate
| Conditions | Yield |
|---|---|
|
|
|
|
|
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide
epichlorohydrin
iohexol
iodixanol
| Conditions | Yield |
|---|---|
|
With
hydrogenchloride; boric acid; potassium hydroxide;
In
water;
pH=10 - 11;
Product distribution / selectivity;
Industry scale;
|
86.3% 7.5% |
|
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide;
With
sodium hydroxide;
In
methanol;
at 45 ℃;
epichlorohydrin;
With
hydrogenchloride;
In
methanol;
at 20 ℃;
for 48h;
Product distribution / selectivity;
|
52.1% 7.42% |
|
With
hydrogenchloride; sodium hydroxide;
In
water;
at 20 ℃;
for 48h;
pH=12.2 - 12.7;
|
43.5% 5.1% |
|
With
sodium hydroxide;
at 20 ℃;
for 1h;
Product distribution;
other bis-alkylating C3 reagents; var. temperature, var. reaction time;
|
|
|
With
sodium hydroxide;
at 15 ℃;
pH=11.9;
|
|
|
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide;
With
sodium hydroxide;
In
propylene glycol;
at 22 - 45 ℃;
epichlorohydrin;
With
hydrogenchloride;
In
propylene glycol;
at 10 - 22 ℃;
for 34h;
Product distribution / selectivity;
|
|
|
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide;
With
sodium hydroxide;
In
propylene glycol;
at 45 ℃;
epichlorohydrin;
With
hydrogenchloride;
In
propylene glycol; water;
at 10 - 22 ℃;
Product distribution / selectivity;
|
|
|
With
sodium hydroxide;
In
ISOPROPYLAMIDE; water;
at 20 ℃;
for 119h;
Product distribution / selectivity;
|
|
|
With
potassium iodide; sodium hydroxide;
In
water;
for 65.5h;
Product distribution / selectivity;
|
|
|
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide; epichlorohydrin;
With
sodium hydroxide;
at 15 ℃;
pH=~ 11.9;
Industry scale;
With
hydrogenchloride;
In
water;
pH=4 - 6;
Industry scale;
|
|
|
With
hydrogenchloride; boric acid; potassium hydroxide;
In
water;
at 20 ℃;
pH=10 - 11;
Product distribution / selectivity;
Industry scale;
|
|
|
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide;
With
boric acid; potassium hydroxide;
In
water;
at 10 ℃;
for 48h;
pH=12.93;
epichlorohydrin;
In
water;
at 10 ℃;
for 24h;
pH=12.6-13;
Reagent/catalyst;
Time;
pH-value;
|
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide
epichlorohydrin
3-monochloro-1,2-propanediol
butan-1-ol
N,N'-bis(2,3-dihydroxypropyl)-5-acetamido-2,4,6-triiodoisophthalamide
