One-pot synthesis of 2-substituted benzo[b]furans via Pd–tetraphosphine catalyzed coupling of 2-halophenols with alkynes?
Chemical Communications Pub Date: 2014-04-14 DOI: 10.1039/C4CC00815D
Abstract
A catalyst composed of [Pd(η3-C3H5)Cl]2 and N,N,N',N'-tetra(diphenylphosphinomethyl)pyridine-2,6-diamine (L) was found to be effective for one-pot synthesis of 2-substituted benzo[b]furans from 2-halophenols and alkynes. For 2-bromo-3-hydroxypyridine, the catalyst loading could be as low as 1 ppm and the turnover number (TON) was up to 870?000.
![Graphical abstract: One-pot synthesis of 2-substituted benzo[b]furans via Pd–tetraphosphine catalyzed coupling of 2-halophenols with alkynes](http://scimg.chem960.com/usr/1/C4CC00815D.jpg)
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Journal Name：Chemical Communications
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CAS no.: 89640-58-4
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