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. 2016;64(7):1056-61.
doi: 10.1248/cpb.c16-00303.

Reaction of 2a,8b-Dihydrobenzo[b]cyclobute[d]pyran-3-ones With Dimethylsulfoxonium Methylide

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Reaction of 2a,8b-Dihydrobenzo[b]cyclobute[d]pyran-3-ones With Dimethylsulfoxonium Methylide

Toru Tanaka et al. Chem Pharm Bull (Tokyo). .
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Abstract

Using dimethylsulfoxonium methylide as the methylene transfer reagent, 2a,8b-dihydrobenzo[b]cyclobute[d]pyran-3-ones were converted into 2,2'-biphenol derivatives as major products and dihydrodibenzofurans as minor products. The reaction mechanism was extrapolated from a deuteration experiment with CD2=S(O)(CD3)2.

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