One - Pot Formation of a Cyclobutane from the Double Photocycloaddition Reactions of 1, 4 - Diethynylbenzene to Some o - Quinones
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A cyclobutane was produced in one pot, when irradiated 1,4-diethynylbenzene and some <I>o</I>-quinones, such as tetrahalo-1,2-benzoquinones, phenanthrenequinone and acenaphthenequinone, in dichloromethane with 300 nm UV light.
- Chemistry Letters
Chemistry Letters 1999(5), 395-396, 1999-05-05
The Chemical Society of Japan