HuagongsheHuagongshe Chemistry Print Report · For research reference only
Azobisisobutyronitrile → cis-5-Norbornene-endo-2,3-dicarboxylic Anhydride tert-butyl 5-Norbornene-2-carboxylate maleic Anhydride mono-methyl cis-5-Norbornene-endo-2,3-dicarboxylate 5-norbornene-2-carboxylic Acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Azobisisobutyronitrile | HCID 6547 | — |
| Reactant | Maleic Anhydride | HCID 7923 | — |
| Reactant | 2-Methyl bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylate | HCID 98465 | — |
| Reactant | cis-5-Norbornene-endo-2,3-dicarboxylic anhydride | HCID 9964188 | — |
| Reactant | Bicyclo[2.2.1]hept-5-ene-2-carboxylic acid, 1,1-dimethylethyl ester | HCID 15607334 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | cis-5-Norbornene-endo-2,3-dicarboxylic Anhydride tert-butyl 5-Norbornene-2-carboxylate maleic Anhydride mono-methyl cis-5-Norbornene-endo-2,3-dicarboxylate 5-norbornene-2-carboxylic Acid | HCID 131723902 | — |
Reaction Steps
Maleic anhydride (1.0 mole), cis-5-norbornene-endo-2,3-dicarboxylic anhydride (0.2 mole), mono-methyl cis-5-norbornene-endo-2,3-dicarboxylate (0.15 mole) and tert-butyl-5-norbornene-2-carboxylate (0.65 mole) are dissolved in tetrahydrofuran. Then, 0.5 to 10 g of AIBN (azobisisobutyronitrile) as a polymerization initiator is added thereto, and the resultant mixture is reacted at about 60-70° C. for 4 to 24 hours under nitrogen or argon atmosphere. The polymer thus obtained is precipitated from ethyl ether or hexane, and dried to obtain the compound represented by the following Chemical Formula 101.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06569971B2 |
| Source dataset | uspto-grants-2003_05 |
| ORD ID | ord-328152a9b30c47788366c02749e86939 |
| Source note | uspto-grants-2003_05 |