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Synthesen von Tricyclo [5.2.1.04,8]decan (2-Homobrendan)

✍ Scribed by Franz Josef Jäggi; Peter Buchs; Camille Ganter


Book ID
102858480
Publisher
John Wiley and Sons
Year
1980
Tongue
German
Weight
936 KB
Volume
63
Category
Article
ISSN
0018-019X

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✦ Synopsis


Syntheses of Tricyclo [5.2.1.0^4,8^]decane (2‐Homobrendane)

Three different approaches to tricyclo [5.2.1.0^4,8^] decane (5) (and derivatives thereof), one of the 19 isomeric hydrocarbons of the ‘adamantaneland’, are described: (1) Cyclization of properly functionalized bicyclo [3.2.1]octanes as 32(cyclialkylation), 40+42 (thermocyclization) and 44+45 (photocyclization); (2) Silver‐(I)‐ion catalyzed rearrangement of 5,7‐ and 5,10‐Dehydroprotoadamantane (63 and 64, respectively) yielding tricyclo[5.2.1.0^4,8^]dec‐2‐ (39) and ‐5‐ene (59), respectively; (3) Thermal eliminative rearrangement of the 10__endo‐p__‐toluenesulfonate and ‐methanesulfonate of protoadamantane (71 and 72) and protoadamant‐4‐ene (76 and 77), respectively, yielding tricyclo [5.2.1.0^4,8^]dec‐2‐ene (39) and ‐2, 5‐diene (15), respectively.


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