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Synthesis of 3-aryl-benzo[b]furans and 3-aryl-naphtho[b]furans using n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride immobilised on SiO2 as an efficient and reusable catalyst. (1st February 2018)
Record Type:
Journal Article
Title:
Synthesis of 3-aryl-benzo[b]furans and 3-aryl-naphtho[b]furans using n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride immobilised on SiO2 as an efficient and reusable catalyst. (1st February 2018)
Main Title:
Synthesis of 3-aryl-benzo[b]furans and 3-aryl-naphtho[b]furans using n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride immobilised on SiO2 as an efficient and reusable catalyst
A new and convenient method is described for the synthesis of 3-aryl-benzo[b]furans and 3-aryl-naphtho[b]furans by the reaction of various α-bromoketones with phenols and 2-naphthols in the presence of n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride immobilised on SiO2. All products were obtained in high yields and short reaction times using solvent-free conditions and a reusable catalyst.