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[摘要]:Domino twofold Heck/6 pi-electrocyclization reactions of 1,2-dihaloalkenes allow for a convenient synthesis of benzene derivatives. In recent years, this strategy has been applied to various 1,2-dihalogenated carbocyclic alkenes and heterocycles, and a variety of benzo-fused ring systems have been prepared. The electrocyclization reactions proceed well for five-membered, but not for six-membered heterocycles. |
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