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ChemInform Abstract: Diels—Alder Reactions of Halogenated Masked o-Benzoquinones: Synthesis of Halogen-Substituted Bicyclo[2.2.2]octenones.
✍ Scribed by Seshi Reddy Surasani; Virendra Singh Rajora; Naganjaneyulu Bodipati; Rama Krishna Peddinti
- Publisher
- John Wiley and Sons
- Year
- 2009
- Weight
- 22 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0931-7597
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
## Abstract o‐Benzoquinone monoketals, generated in situ by oxidation of o‐methoxyphenols (I) in the presence of methanol, undergo Diels—Alder reaction with olefins (III) and dihydrofuran to give the endo adducts (IV) and (VI) selectively.
## Synthesis of Stable Bromo-Substituted Masked o-Benzoquinones and Their Application to the Synthesis of Bicyclo[2.2.2]octenones. -Oxidation of the brominated phenol (II) in the presence of dienophiles generates adducts (V) via a masked o-benzoquinone. Debromonation of the adducts gives the bicy