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On the nature of the tricyclo[5.3.1.04,11]undecatrienyl cation

✍ Scribed by Richard B. Du Vernet; Michael Glanzmann; Gerhard Schröder

Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
249 KB
Volume
19
Category
Article
ISSN
0040-4039

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✦ Synopsis

We recently reported the synthesis of the methoxytrienes A and 2, potential precursors of the bridged trishomotropylium ion 2 1) . The low temperature lH-NMR spectrum of the cation produced by treatment of & with FS03H/S02ClF/CD2C12

(1:3:3) was not, however, consistent with either structure 2 or the simple allylic system g. Most striking in this spectrum were temperature dependent signals appearing in the region T -2.50 to 0.25. Due to the lack of additional data, we declined to propose a definite structure for the cation at that time.

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