Separating agent for optical isomer
a technology of optical isomers and separation agents, which is applied in the field of separation agents for optical isomers, can solve the problems of difficult separation of large amounts of optical isomers in one stroke with the filler, low mechanical strength of the separation agent for optical isomers, and limited amount of polymer compound derivatives which the inorganic carrier can carry on itself, etc., and achieve excellent solvent resistance, suppress swelling and contraction of the separation agent, and high mechanical strength
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
example 1
[0125](1-1) Synthesis of Cellulose 3,5-dimethylphenylcarbamate having Alkoxysilyl Groups
[0126]First, 4.00 g (24.7 mmol) of dried cellulose were dissolved in a mixed solution of 120 ml of dehydrated N,N-dimethylacetamide, 60 ml of dehydrated pyridine, and 8.00 g of lithium chloride.
[0127]Then, 9.08 g (61.8 mmol) of 3,5-dimethylphenyl isocyanate were added to the resultant solution, and the mixture was subjected to a reaction at 80° C. for 15 hours. After that, 0.52 g (2.1 mmol) of 3-isocyanatepropyltriethoxysilane was added to the resultant, and the mixture was subjected to a reaction at 80° C. for 12 hours. Further, 9.08 g (61.8 mmol) of 3,5-dimethylphenyl isocyanate were added to the resultant, and the mixture was subjected to a reaction at 80° C. for 11 hours. A pyridine soluble portion was dropped into methanol and recovered as an insoluble portion. After that, the portion was dried in a vacuum. As a result, 13.13 g of a cellulose 3,5-dimethylphenylcarbamate derivative A into whi...
example 2
[0142](2-1) Synthesis of Cellulose 3,5-dimethylphenylcarbamate having Alkoxysilyl Groups
[0143]First, 4.00 g (24.7 mmol) of dried cellulose were dissolved in a mixed solution of 120 ml of dehydrated N,N-dimethylacetamide, 60 ml of dehydrated pyridine, and 8.00 g of lithium chloride.
[0144]Then, 9.08 g (61.8 mmol) of 3,5 -dimethylphenyl isocyanate were added to the resultant solution, and the mixture was subjected to a reaction at 80° C. for 15 hours. After that, 0.34 g (1.4 mmol) of 3-isocyanatepropyltriethoxysilane was added to the resultant, and the mixture was subjected to a reaction at 80° C. for 12 hours. Further, 9.08 g (61.8 mmol) of 3,5-dimethylphenyl isocyanate were added to the resultant, and the mixture was subjected to a reaction at 80° C. for 11 hours. A pyridine soluble portion was dropped into methanol and recovered as an insoluble portion. After that, the portion was dried in a vacuum. As a result, 13.29 g of a cellulose 3,5-dimethylphenylcarbamate derivative B into wh...
example 3
[0153](3-1) Synthesis of Cellulose 3,5-dimethylphenylcarbamate having Alkoxysilyl Groups
[0154]First, 0.50 g (3.09 mmol) of dried cellulose was dissolved in a mixed solution of 15 ml of dehydrated N,N-dimethylacetamide, 7.5 ml of dehydrated pyridine, and 1.00 g of lithium chloride.
[0155]Then, 1.13 g (7.72 mmol) of 3,5-dimethylphenyl isocyanate were added to the resultant solution, and the mixture was subjected to a reaction at 80° C. for 6 hours. After that, 84 mg (0.34 mmol) of 3-isocyanatepropyltriethoxysilane was added to the resultant, and the mixture was subjected to a reaction at 80° C. for 13 hours. Further, 1.36 g (9.26 mmol) of 3,5-dimethylphenyl isocyanate were added to the resultant, and the mixture was subjected to a reaction at 80° C. for 7 hours. A pyridine soluble portion was dropped into methanol and recovered as an insoluble portion. After that, the portion was dried in a vacuum. As a result, 1.65 g of a cellulose 3,5-dimethylphenylcarbamate derivative C into which a...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Fraction | aaaaa | aaaaa |
| Ratio | aaaaa | aaaaa |
| Optical activity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More