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Figure 1
Intra- and intermolecular Diels–Alder reaction in vinylfurans and vinylthiophenes in the synthesis of benzofurans and benzothiophenes. |
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Figure 1
Intra- and intermolecular Diels–Alder reaction in vinylfurans and vinylthiophenes in the synthesis of benzofurans and benzothiophenes. |