Abstract
Six furandialkynes were prepared and investigated in gold-catalyzed
reactions. Only gold(III) chloride allowed a conversion of the furandialkynes
into the corresponding phenol derivative and a further conversion
of the ortho-alkynylfurans into benzofurans. Free hydroxy groups
in the substrate led to competing hydroalkoxylations to give acylfurans
or benzofuran spiroketals.
Key words
alkynes - benzofurans - furans - gold - homogeneous catalysis - spiro compounds
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or deposit@ccdc.cam.ac.uk
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