Diastereoselective addition of 2-trimethylsilyloxyfuran to (S)-(+)-2-(p-tolylsulfinyl)-1,4-benzoquinone
β Scribed by Margaret A Brimble; Letecia J Duncalf; David C.W Reid
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 424 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0957-4166
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π SIMILAR VOLUMES
A wide range of substituted 1,4-phenanthrenequinones 5a-g and benz[c]-and benz[a]-l,4pbenantbrenequinones (5h)and (5i) were syntbezisedin one step tbroughDieIs-Aldercycloadditions of 2-(p-tolylsulfinyl)-1,4-benzoquinone2 and vinylaromaticderivatives la-i under thermal and higb pressureconditionsin m
Improved Synthesis of 1,4-Phenanthrenequinones from Diels-Alder Cycloadditions of 2-(p-Tolylsulfinyl)-1,4-benzoquinone. -A variety of substituted 1,4-phenanthrenequinone compounds is prepared. In most cases application of the high pressure variant is more effective. Styrenes (VI), under thermal cond
afforded Diels-Alder adduct 14 and fragmentation product 32 with 2 and 3 respectively whereby reaction occurred on the less substituted double bond. No adducts were isolated upon treatment of naphthoquinone-sulfide 22 with either 2 or 3. The Diels-Alder adducts of benzoquinone-sulfoxide 9 and naphth