Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Divinyl sulfone | HCID 6496 | — |
| Reactant | Maleimide | HCID 10935 | — |
| Reactant | Tetrabutylammonium Hydroxide | HCID 2723671 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 59827394 | HCID 59827394 | 84.8% |
Reaction Steps
In a 50 mL round bottom flask, a mixture of 0.5 g of maleimide, 0.61 g of divinylsulfone and 10 g of 1,4-dioxane was heated to 40-50° C. and stirred. To the reaction solution was added 0.67 g of 40% aqueous tetrabutylammonium hydroxide solution. Subsequently, the mixture was stirred at 40-50° C. for 3 more hours. After stopping stirring, the reaction solution was cooled to room temperature and precipitated and dispersed in 100 mL of methanol. The resultant precipitate was filtered, redispersed in a large volume of clean water, filtered again and washed to remove salt. Then, the product was redispersed in 50 mL of methanol, filtered and dried to obtain 0.94 g of N-vinylsulfonylethylmaleimide (yield=61%)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08362276B2 |
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| Source dataset | uspto-grants-2013_01 |
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| ORD ID | ord-834772eb6ae5405d81e43b450846fa3f |
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| Source note | uspto-grants-2013_01 |
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