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An efficient and reusable nano catalyst for the synthesis of benzoxanthene and chromene derivatives.

ABSTRACT: Potassium fluoride impregnated on clinoptilolite nanoparticles (KF/CP NPs) was investigated as an efficient solid base catalyst for multicomponent condensation reaction. A broad range of aromatic aldehydes and enolizable compounds were condensed with 2-naphthol or 4-hydroxycumarine. The reaction was carried out under a solvent-free condition to give the corresponding benzoxanthene and pyrano [3,2-c]chromene derivatives in high yields. The low cost and availability of catalyst, novel and green procedure makes this strategy more useful for the preparation of tetrahydrobenzo[a]-xanthene-11-one and pyrano [3,2-c]chromene derivatives.

SUBMITTER: Balou J

PROVIDER: S-EPMC6401364 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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An efficient and reusable nano catalyst for the synthesis of benzoxanthene and chromene derivatives.

Balou Javad J Khalilzadeh Mohammad A MA Zareyee Daryoush D

Scientific reports 20190305 1

Potassium fluoride impregnated on clinoptilolite nanoparticles (KF/CP NPs) was investigated as an efficient solid base catalyst for multicomponent condensation reaction. A broad range of aromatic aldehydes and enolizable compounds were condensed with 2-naphthol or 4-hydroxycumarine. The reaction was carried out under a solvent-free condition to give the corresponding benzoxanthene and pyrano [3,2-c]chromene derivatives in high yields. The low cost and availability of catalyst, novel and green pr ...[more]

PMID: 30837615

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