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Síntese de derivados 4-aril-3,4-di-hidrocumarínicos catalisada por NbCl5

Author(s): Santos,Willian Henrique dos ; Siqueira,Mayara de Souza ; Silva-Filho,Luiz Carlos da

Date: 2013

Origin: Oasisbr

Subject(s): niobium pentachloride; multicomponent reaction; coumarin derivatives; niobium pentachloride; niobium pentachloride; multicomponent reaction; multicomponent reaction; coumarin derivatives; coumarin derivatives

Description

Multicomponent reactions between phenols, β-diesters and benzaldehydes for the synthesis of 4-aryl-3,4-dihydrocoumarin derivatives were carried out under mild conditions (room temperature) and presented moderate yields (38-88%) and reasonable reaction times (2-4 days), using niobium pentachloride as a catalyst.

Document Type Journal article
Language Portuguese

Document details

Síntese de derivados 4-aril-3,4-di-hidrocumarínicos catalisada por NbCl5

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Síntese de derivados 4-aril-3,4-di-hidrocumarínicos catalisada por NbCl5