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Synthesis and Diels-Alder Reactions of 1,2-Dimethylene- and 1,2,9,10-Tetramethylene-[2.2]paracyclophane: New Routes to Bridge-Anellated[2.2]Paracyclophanedienes
König, Burkhard and Meijere, Armin de (1992) Synthesis and Diels-Alder Reactions of 1,2-Dimethylene- and 1,2,9,10-Tetramethylene-[2.2]paracyclophane: New Routes to Bridge-Anellated[2.2]Paracyclophanedienes. Chemische Berichte 125 (8), pp. 1895-1898.Date of publication of this fulltext: 05 Aug 2009 13:51
Article
DOI to cite this document: 10.5283/epub.6149
Abstract
The title compounds 8 and 1 have been synthesized in three steps each from 1,2-dibromo[2.2]paracyclophan-1-ene (2) and 1,2,9,10-tetrabromo[2.2]paracyclophane-1,9-diene (4), respectively. Copper-mediated coupling of vinyl bromides 2 and 4 with methyl- and phenylmagnesium bromide gives substituted [2.2]paracyclophanes 3-CH3, 3-Ph, 5-CH3, and 5-Ph in good yields. The high reactivity of the ...
The title compounds 8 and 1 have been synthesized in three steps each from 1,2-dibromo[2.2]paracyclophan-1-ene (2) and 1,2,9,10-tetrabromo[2.2]paracyclophane-1,9-diene (4), respectively. Copper-mediated coupling of vinyl bromides 2 and 4 with methyl- and phenylmagnesium bromide gives substituted [2.2]paracyclophanes 3-CH3, 3-Ph, 5-CH3, and 5-Ph in good yields. The high reactivity of the [2.2]paracyclophane-1,2-dimethylene moieties in 8 and 1 in Diels-Alder reactions has been verified in cycloadditions with p-benzoquinone to give 10 and 13 and with naphthalene 1,4-endoxide to yield 12.
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| Item type | Article | ||||
| Journal or Publication Title | Chemische Berichte | ||||
| Publisher: | Wiley-VCH | ||||
|---|---|---|---|---|---|
| Volume: | 125 | ||||
| Number of Issue or Book Chapter: | 8 | ||||
| Page Range: | pp. 1895-1898 | ||||
| Date | 1992 | ||||
| Institutions | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König | ||||
| Identification Number |
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| Keywords | Bisdienes; Diels-Alder reaction with p-benzoquinone; p-Cyclophanes, bridge-anellated | ||||
| Dewey Decimal Classification | 500 Science > 540 Chemistry & allied sciences | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | No | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-61497 | ||||
| Item ID | 6149 |
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