Organized Photocycloaddition of 4-Benzoylbenzoate with Unsaturated Carboxylates in Hydrotalcite Clay Interlayers [in Japanese]
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Photoirradiation of a mixture of 4-benzoylbenzoate (<B>1</B>) and 4-(2-phenylethenyl)benzoate yielded regioselective oxetanes in the presence of hydrotalcite clay. Similar irradiation of a mixture of <B>1</B> and cinnamate gave rise to β-truxinate, but not oxetane. The unexpected formation of oxetanes is understood by the favorable distance between C=O and C=C bonds packed in clay interlayers.
- Chemistry Letters
Chemistry Letters 1996(9), 781-782, 1996-09
The Chemical Society of Japan