4265-16-1, Name is Benzo[b]furan-2-carboxaldehyde, belongs to benzofurans compound, is a common compound. COA of Formula: C9H6O2In an article, once mentioned the new application about 4265-16-1.
(Chemical Equation Presented) Two synthetic routes to several (Z)-polyaromatic and heteroaromatic substituted vinylacetylenes are described. The nature of aryl- or heteroaryl-substituted carboxaldehyde used as starting material dictated the choice of Wittig salt employed. A very attractive way to construct polyaromatic and pyridine-containing enynes is the reaction of polyaromatic and pyridine-containing aldehydes with bromomethyltriphenylphosphonium bromide in the presence of potassium tert-butoxide followed by a Sonogashira desilylation procedure (method B).
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Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H844O – PubChem