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Porphycene—a Novel Porphin Isomer

✍ Scribed by Prof. Dr. Emanuel Vogel; Matthias Köcher; Dr. Hans Schmickler; Dr. Johann Lex


Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
371 KB
Volume
25
Category
Article
ISSN
0044-8249

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## Abstract An easy approach to the novel adamantane isomer 1,2__endo__‐trimethylenenorbornane **(2)** is described. Starting from a mixture of pent‐4‐ynylcyclopentadienes **3** the tricyclic monosaturated key intermediate **5** was prepared by intramolecular cycloaddition (→**4**) and subsequent r