Trapping evidence for the thermal cyclization of di-(o-acetylphenyl)acetylene to 3,3'-dimethyl-1,1'-biisobenzofuran
The reaction of di-(o-acetylphenyl)acetylene (1) with excess dimethyl acetylenedicarboxylate (DMAD) produced bis-DMAD adducts meso-3 and rac-3. This transformation is suggested to involve thermal rearrangement of 1 to the intermediate 3,3'-dimethyl-1,1'-biisobenzofuran (A), and subsequent...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Beilstein-Institut
2005-12-01
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| Series: | Beilstein Journal of Organic Chemistry |
| Online Access: | https://doi.org/10.1186/1860-5397-1-18 |