Synthesis und thermisches Verhalten von  exo ‐3‐Methylidentricyclo[3.2.1.0 2,4 ]oct‐6‐en | Zendy

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Synthesis und thermisches Verhalten von exo ‐3‐Methylidentricyclo[3.2.1.0 2,4 ]oct‐6‐en

Author(s) -

Stämpfli Urs,

Neuenschwander Markus

Publication year - 1988

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19880710819

Subject(s) - chemistry , diradical , cyclopentadiene , yield (engineering) , medicinal chemistry , organic chemistry , catalysis , physics , nuclear physics , singlet state , excited state , materials science , metallurgy

Synthesis and Thermal Behaviour of exo ‐3‐Methylidenetricyclo[3.2.1.0 2,4 ]oct‐6‐ene The title compound 3 has been prepared in 16% yield starting from 8,9,10‐trinorborna‐2,5‐diene. Heating 3 at 140° for 4 h does not give triafulvene and cyclopentadiene by Diels ‐ Alder cycloreversion, instead the tetracyclic compound 10 has been isolated (81%), which is presumably formed via the diradical 11.

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