Isoprene → 3a,4,7,7a-Tetrahydro-5-methyl-1,3-isobenzofurandione

HRID 638356Notes

Reaction equation

[CH2:1]=[CH:2][C:3](=[CH2:5])[CH3:4].[C:6]1(=[O:12])[O:11][C:9](=[O:10])[CH:8]=[CH:7]1>>[CH3:5][C:3]1[CH2:4][CH:7]2[C:6](=[O:12])[O:11][C:9](=[O:10])[CH:8]2[CH2:1][CH:2]=1

Participants

Reactant 2

HCID 6557Isoprene

HCID 7923Maleic Anhydride

Product 1

HCID 984963a,4,7,7a-Tetrahydro-5-methyl-1,3-isobenzofurandione

Procedure

reacting isoprene and maleic anhydride to form 4-methyl-1,2,3,6-tetrahydrophthalic anhydride;

Sources & evidence

ORD record: ord-2e2c157177f84a28b069471e8653bdeb
Source dataset: uspto-grants-1985_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04560772

Reaction notes

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