Abstract
1,5-Diphenylpentane-1,5-dione reacts (50 mol% KOH in DMSO, 70°C, 3h) with phenylacetylene in a domino manner to afford 3-benzoyl-2-benzyl-1-phenylcyclopenten-1-ol and its debenzoylated derivative in 66 and 25% yields, respectively.
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