New Pathways to Precursors of Pentalene
Syn-cis-(2) and anti-cis-(3) pentalene dimers are easily available by CuCl2-induced oxidative coupling of dilithium-pentalenediide (5). On the other hand, NBS-bromination as well of 1,5-dihydro-pentalene (4) as of 1,2-dihydropentalene (6) gives unstable 1-bromo-1,2-dihydropentalene (7), wh...
| প্রধান লেখক: | , |
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| বিন্যাস: | প্রবন্ধ |
| ভাষা: | deu |
| প্রকাশিত: |
Swiss Chemical Society
1996-01-01
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| মালা: | CHIMIA |
| অনলাইন ব্যবহার করুন: | https://chimia.ch/chimia/article/view/2599 |
| সংক্ষিপ্ত: | Syn-cis-(2) and anti-cis-(3) pentalene dimers are easily available by CuCl2-induced oxidative coupling of dilithium-pentalenediide (5). On the other hand, NBS-bromination as well of 1,5-dihydro-pentalene (4) as of 1,2-dihydropentalene
(6) gives unstable 1-bromo-1,2-dihydropentalene (7), while subsequent in situ elimination with Et3N exclusively leads to syn-cis-pentalene dimer 2 in moderate yields.
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| আইএসএসএন: | 0009-4293 2673-2424 |