Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 466794Generated: October 26, 2026

Phthalic Anhydride → 4-Methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione

https://huagongshe.com/reaction/466794

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
ReactantPenta-1,3-dieneHCID 15301—
Product4-Methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dioneHCID 12726603—

Reaction Steps

The Diels-Alder adduct from phthalic anhydride and piperylene is hydrolysed and partially oxidized as in Example 10 and further oxidized as in Example 11. Similar results are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05157152
Source datasetuspto-grants-1992_10
ORD IDord-d1e2e69b7de34c96b145aef6b890475d
Source noteuspto-grants-1992_10