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1,4-Difluoro-2,5-dimethoxybenzene as a precursor for iterative double benzyne-furan Diels-Alder reactions.

The Journal of organic chemistry (2005-04-23)
Gillian E Morton, Anthony G M Barrett
ABSTRACT

[reaction: see text] The use of 1,4-difluoro-2,5-dimethoxybenzene as a novel precursor for iterative two-directional benzyne-furan Diels-Alder reactions, using a range of 2- and 3-substituted furans, is reported. Substituted oxabenzonorbornadienes were synthesized following the initial Diels-Alder reaction, which upon ring opening under acidic conditions gave substituted naphthol derivatives. Highly substituted anthracenols were generated in the second benzyne-furan Diels-Alder reaction following acid-catalyzed isomerization of the cycloadducts.

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Product Description

Sigma-Aldrich
1,4-Difluoro-2,5-dimethoxybenzene, 99%