Dehydrogenation of Hexamethyl-Dewar-benzene to its Tetramethyl-o-dimethylene Derivative: Synthesis and Cycloreversion of 1,2,3,4-Tetramethyl-5,6-bismethylenebicyclo[2.2.0]hex-2-ene
The allylic bromination of hexamethyl-Dewar-benzene (1) followed by dehydrobromination yields tetramethyl-Dewar-«xylylene» (3). The cycloreversion of 3 to the reactive monocyclic isomer 4 proceeds smoothly upon irradiation or heating above 60 °C.
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| Main Authors: | , |
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| Format: | Article |
| Language: | deu |
| Published: |
Swiss Chemical Society
1985-01-01
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| Series: | CHIMIA |
| Online Access: | https://www.chimia.ch/chimia/article/view/9643 |
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