- 1-Benzylpyrrole-2,5-dione
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- $3.00 / 25KG
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2025-10-13
- CAS:1631-26-1
- Min. Order: 0.1KG
- Purity: 99%
- Supply Ability: g-kg-tons, free sample is available
- N-Benzylmaleimide
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- $0.00 / 1KG
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2022-02-10
- CAS:1631-26-1
- Min. Order: 1KG
- Purity: 97.3%
- Supply Ability: 100 tons
- N-Benzylmaleimide
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- $6.00 / 1kg
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2020-06-02
- CAS:1631-26-1
- Min. Order: 1kg
- Purity: High quality Professional Factory
- Supply Ability: Ms Ella chemwill_asia@126.com www.chemwill.com
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| | N-Benzylmaleimide Basic information |
| | N-Benzylmaleimide Chemical Properties |
| Melting point | 70 °C (lit.) | | Boiling point | 177 °C / 20mmHg | | density | 1 g/cm3 | | storage temp. | Inert atmosphere,Room Temperature | | solubility | Chloroform (Slightly), Methanol (Slightly) | | pka | -2.21±0.20(Predicted) | | form | powder to crystal | | color | White to Almost white | | Water Solubility | Insoluble | | BRN | 135801 | | InChI | InChI=1S/C11H9NO2/c13-10-6-7-11(14)12(10)8-9-4-2-1-3-5-9/h1-7H,8H2 | | InChIKey | MKRBAPNEJMFMHU-UHFFFAOYSA-N | | SMILES | N1(CC2=CC=CC=C2)C(=O)C=CC1=O | | CAS DataBase Reference | 1631-26-1(CAS DataBase Reference) | | NIST Chemistry Reference | N-benzylmaleimide(1631-26-1) |
| Hazard Codes | C,T | | Risk Statements | 34-25-20/21 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 1759 8/PG 2 | | WGK Germany | 3 | | Hazard Note | Irritant | | HazardClass | 8 | | PackingGroup | III | | HS Code | 29251900 | | Storage Class | 8A - Combustible corrosive hazardous materials | | Hazard Classifications | Eye Dam. 1
Skin Corr. 1B |
| | N-Benzylmaleimide Usage And Synthesis |
| Chemical Properties | off-white to light yellow | | Uses | N-Benzylmaleimide is used as plastic additive, Pharmaceutical Intermediates. It is an important raw material intermediate used in organic Synthesis, Pharmaceuticals, Agrochemicals Dyestuff. | | General Description | N-Benzylmaleimide is an N-substituted maleimide and its microwave-mediated facile and fast synthesis has been described. Radical and anionic copolymerization of N-benzylmaleimide with optically active N-(L-menthoxycarbonylmethyl)maleimide has been reported. Base-catalyzed asymmetric cycloaddition of anthrone with N-benzylmaleimide was studied in the presence of C2-chiral pyrrolidines. Stereoselctive iridium-catalyzed double incorporation reaction of styrene with N-benzylmaleimide affords cyclic product. | | Synthesis | GENERAL PROCEDURE: At room temperature, benzylamine (17 mmol) was slowly added dropwise to a solution of maleic anhydride (20 mmol) dissolved in acetic acid (10 mL) to form a suspension. Subsequently, the reaction mixture was stirred under reflux conditions overnight. Upon completion of the reaction, the solvent was removed by distillation under reduced pressure. The residue was dissolved in chloroform (100 mL) and extracted by partition with deionized water (30 mL). The aqueous phase was further extracted with chloroform (3 x 50 mL). All organic phases were combined and washed sequentially with saturated aqueous sodium bicarbonate (30 mL) and brine (30 mL). The organic phases were dried over anhydrous sodium sulfate, filtered and concentrated. Finally, the concentrated residue was purified by silica gel column chromatography to obtain N-benzylmaleimide. | | References | [1] Journal of Chemical Research - Part S, 1998, # 5, p. 272 - 273
[2] Journal of the Chinese Chemical Society, 2009, vol. 56, # 4, p. 839 - 842
[3] Synthesis, 2004, # 7, p. 995 - 998
[4] Tetrahedron Letters, 1997, vol. 38, # 46, p. 8089 - 8092
[5] Tetrahedron Asymmetry, 2008, vol. 19, # 18, p. 2115 - 2118 |
| | N-Benzylmaleimide Preparation Products And Raw materials |
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