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CAS No. : | 6342-17-2 | MDL No. : | MFCD00077661 |
Formula : | C10H14N2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | YERHJBPPDGHCRJ-UHFFFAOYSA-N |
M.W : | 194.23 | Pubchem ID : | 193422 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
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* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | With triethylamine In dichloromethane Ambient temperature; | |
70% | In dichloromethane; triethylamine at -5 - 20℃; for 13h; | |
65% | With triethylamine In dichloromethane 1.) 0 deg C, 739 min; 2.) RT, 1 h; |
57% | With triethylamine In dichloromethane at 0 - 20℃; for 1.75h; | |
55% | With triethylamine |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
polymerisiert beim Stehenlassen; | ||
Polyaddition; | ||
Rk. mit Propan-2-ol in Ggw. v. KOCH(CH3)2 bei 24grad; |
Rk. mit Propan-2-ol (50percent) in N,N-Dimethylformamid in Ggw. v. KOCH(CH3)2 bei 24grad; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1,4-Bis-(3-chlor-propionyl)-piperazin bei der Chromatographie an Al2O3; | ||
Acryloylchlorid, Piperazin; | ||
entspr. Acrylat, 1) Halocarbonat, 2) Piperazin; |
The process of claim 1, wherein said polyfunctional compound copolymerizable with acrylamide is selected from the group consisting of ... butylidene bis-acrylamide, benzylidene bis-acrylamide, diacrylamido acetic acid, xylylidene tetra-acrylamide, N,N'-bis-(acrylyl) piperazine and p-benzylidene camphor-N,N'-acrylyl diaminomethane. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | In ethanol at 20℃; for 20h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: 85 percent / ethanol / 20 h / 20 °C 2: 79 percent / CH2Cl2; triethylamine / 13 h / -5 - 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: 85 percent / ethanol / 20 h / 20 °C 2: 79 percent / CH2Cl2; triethylamine / 13 h / -5 - 20 °C 3: 82 percent / ethanol / 20 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91.8% | With lithium hydroxide | 24 Lithium hydroxide monohydrate (112,64 mg, 2,6576 mmol) was added under stirring to a 37,36% solution (as determined titrimetrically just before use) of EDDS) (2 ml, 2.6576 mmol) contained in a 50 ml 2 necked flask. 1 ,4- bisacryloylpiperazine (BP) (516,19 mg. 2,6576 mmol) was then added. The reaction mixture was then treated and the final product isolated exactly as described in the previous case. Yield 91 ,8 %. M«> = 6500, Mn = 4500. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | In water at 0℃; for 48h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | In water at 0℃; for 48h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 83% 2: 85% | Stage #1: N,N'-bis(morpholinopropionyl)piperazine; acetic anhydride In toluene at 20 - 80℃; for 2h; Inert atmosphere; Stage #2: With 2,6-di-tert-butyl-4-methyl-phenol; triethylamine for 12h; Reflux; | 5 Example 5: Under argon atmosphere, 17.8 g of benzyl bromide and 23 g of morpholinopropionyl morpholine were mixed with 250 ml of toluene, and the temperature was gradually increased from room temperature to 60 to 80 degrees Celsius and stirred for 2 hours. After stirring 0.2 grams of inhibitor BHT and 11.1 grams were addedTriethylamine, and gradually warmed to reflux for 12 hours, the reaction system was concentrated under reduced pressure to give the crude product was directly purified by silica gel column chromatographyElution with hexane-ethyl acetate gave 10.8 g of pure (in 77% yield) of acryloylmorpholine and pure N-benzylmorpholine14.9 g (84% yield). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
95% | With (ZrO2-Fe3O4-Nb2O5) catalyst In toluene at 60℃; for 6h; Schlenk technique; Inert atmosphere; | 4 Example 4 Take a 50mL Schlenk bottle, bake and replace the argon gas, add acrylic acid (1.44g, about 24mmol), piperazine (0.86g, about 10mmol) in 20mL of toluene, and then add the zirconium-based three prepared in Example 1 Metal oxide solid acid (ZrO2-Fe3O4-Nb2O5) (8.6mg), heated to 60°C, stirred for 6h, filtered the catalyst, washed the catalyst with toluene 2 times, and recovered and reused. The filtrate was washed 3 times with a pH 10 NaOH aqueous solution, and after washing with brine to neutrality, the liquid was separated, the organic phase was evaporated to remove the solvent, and dried under vacuum to obtain 1,4-diacryloylpiperazine with a yield of 95% |
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