Synthesis of Benzofuranofuran Derivatives: Model of Natural Products

Donate, Paulo Marcos; Silva, Rosangela da; Silva, Gil Valdo José da; Alemán, Carlos

doi:10.1081/scc-100000191

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Cited by 8 publications

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Asymmetric Organocatalytic Synthesis of Benzopyran‐ and Benzofuran‐Fused Polycyclic Acetals

et al. 2017

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An efficient organocatalytic method for the asymmetric preparation of benzopyran‐ and benzofuran‐fused polycyclic acetals is described for the first time. This useful approach includes an interesting tunable Michael–acetalization of nitrostyrenes or α‐aromatization–acetalization of quinones. Under mild conditions, simple cyclic hemiacetals could be stereoselectively converted into four different types of polyheterocycles that serve as scaffolds for a number of bioactive natural products.magnified image

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Asymmetric Organocatalytic Synthesis of Benzopyran‐ and Benzofuran‐Fused Polycyclic Acetals

et al. 2017

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Synthesis, Anticonvulsant, and Anti‐inflammatory Activities of Some New Benzofuran‐Based Heterocycles

Dawood¹,

Abdel‐Gawad

Ellithey

et al. 2006

Archiv der Pharmazie

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Treatment of 2-bromoacetylbenzofuran (2) with pyridine afforded its corresponding pyridinium bromide 3. The latter salt reacted with some activated alkenes and acetylenes to give the corresponding indolizine derivatives. Treatment of the salt 3 with benzylidenemalononitriles 9 afforded polysubstituted aniline derivatives, however with arylidenecyanothioacetamides 15 it gave the corresponding 4,5-dihydrothiophenes. Bromide 3 also coupled with p-chlorobenzenediazonium salt followed by ammonium acetate to give the corresponding 1,2,4,5-tetrazine derivative. The biological activity of the newly synthesized compounds was examined and some of them were found to possess anticonvulsant and anti-inflammatory activities.

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ChemInform Abstract: Synthesis of Benzofuranofuran Derivatives: Model of Natural Products.

Donate

Silva

et al. 2001

ChemInform

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Synthesis of Benzofuranofuran Derivatives: Model of Natural Products

Cited by 8 publications

References 15 publications

Asymmetric Organocatalytic Synthesis of Benzopyran‐ and Benzofuran‐Fused Polycyclic Acetals

Asymmetric Organocatalytic Synthesis of Benzopyran‐ and Benzofuran‐Fused Polycyclic Acetals

Synthesis, Anticonvulsant, and Anti‐inflammatory Activities of Some New Benzofuran‐Based Heterocycles

ChemInform Abstract: Synthesis of Benzofuranofuran Derivatives: Model of Natural Products.

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