Reliable factory customized supply 1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol 135861-56-2
- Molecular Formula:C24H30O6
- Molecular Weight:414.499
- Appearance/Colour:white powder
- Vapor Pressure:0-0Pa at 25℃
- Melting Point:>250oC
- Boiling Point:611.599 °C at 760 mmHg
- PKA:13.26±0.20(Predicted)
- Flash Point:323.684 °C
- PSA：77.38000
- Density:1.196 g/cm3
- LogP:3.17020
135861-56-2 Relevant articles
Method of preparing powdery diacetal clarifying agent
-
Page/Page column 15-17, (2019/07/17)
Provided is a method of preparing a powd...
Method of preparing diacetal-based clarifying agent
-
Paragraph 0060-0062, (2015/11/24)
Provided is a method of preparing a diac...
Process For Preparation Of Acetals
-
Paragraph 0095, (2013/11/19)
A process for the preparation of 1,3:2,4...
Process For The Preparation of Alditol Acetals
-
Paragraph 0060, (2013/11/19)
The present invention is directed to a p...
135861-56-2 Process route
-
-
5973-71-7
3,4-dimethylbenzaldehyde
-
-
135861-56-2
1,3:2,4-di-O-(3,4-dimethylbenzylidene)-D-sorbitol
Conditions
| Conditions |
Yield |
|
toluene-4-sulfonic acid;
In
acetonitrile;
at 20 ℃;
for 12h;
Product distribution / selectivity;
|
99%
|
|
With
trimethyl orthoformate;
bismuth(lll) trifluoromethanesulfonate;
In
methanol;
at 20 ℃;
for 48h;
Product distribution / selectivity;
|
99%
|
|
With
trimethyl orthoformate;
bismuth(lll) trifluoromethanesulfonate;
In
methanol;
at 20 ℃;
for 49h;
Product distribution / selectivity;
Heating / reflux;
|
99%
|
|
bismuth(lll) trifluoromethanesulfonate;
In
methanol;
Product distribution / selectivity;
|
95%
|
|
toluene-4-sulfonic acid;
In
methanol;
Product distribution / selectivity;
|
92%
|
|
3,4-dimethylbenzaldehyde; D-sorbitol;
With
camphor-10-sulfonic acid;
In
methanol;
at 20 ℃;
for 48h;
With
methanol; sodium tetrahydroborate;
for 2h;
pH=8;
Reagent/catalyst;
|
90.3%
|
|
With
methanesulfonic acid;
In
methanol;
at 20 ℃;
for 42h;
Inert atmosphere;
Large scale;
|
86.7%
|
|
With
methanesulfonic acid; choline chloride;
In
methanol;
at 26 ℃;
for 8h;
Product distribution / selectivity;
|
80%
|
|
With
methanesulfonic acid; choline chloride;
In
methanol;
at 26 ℃;
for 8h;
Concentration;
Reagent/catalyst;
Solvent;
Time;
|
80%
|
|
toluene-4-sulfonic acid; sodium chloride;
In
methanol;
at 26 ℃;
for 5h;
Product distribution / selectivity;
|
77%
|
|
hydrogenchloride;
In
methanol; water;
Product distribution / selectivity;
|
63%
|
|
toluene-4-sulfonic acid;
In
nitromethane;
Product distribution / selectivity;
|
55%
|
|
toluene-4-sulfonic acid;
In
1,4-dioxane;
Product distribution / selectivity;
|
55%
|
|
tin(ll) chloride;
In
methanol;
at 20 ℃;
for 12h;
Product distribution / selectivity;
|
50%
|
|
toluene-4-sulfonic acid;
In
N,N-dimethyl-formamide;
Product distribution / selectivity;
|
8%
|
|
With
toluene-4-sulfonic acid;
In
methanol; cyclohexane;
at 65 ℃;
for 6.5h;
Concentration;
Reagent/catalyst;
Temperature;
Time;
Dean-Stark;
Reflux;
|
|
135861-56-2 Upstream products
-
5973-71-7
3,4-dimethylbenzaldehyde
-
50-70-4
D-sorbitol
English
中文
