## Abstract 2‐(__tert__‐Butyl)‐3,7‐dehydrotropone (7‐(__tert__‐butyl)bicyclo[3.2.0]hepta‐1(7),2,4‐trien‐6‐one; **1**) was found to dimerize reversibly to **2A** by [2 + 4]‐cycloaddition/cycloreversion reaction. The equilibrium lies on the side of the highly strained dimer **2A** in the solid state,
✦ LIBER ✦
Rearrangements of C 7 H 6 Isomers: Computational Studies of the Interconversions of Bicyclo[3.2.0]hepta-1,3,6-triene, Bicyclo[3.2.0]hepta-3,6-diene-2-ylidene, Bicyclo[3.2.0]hepta-2,3,6-triene, and Cyclohepta-1,2,4,6-tetraene
✍ Scribed by Patterson, Eric V.; McMahon, Robert J.
- Book ID
- 121435615
- Publisher
- American Chemical Society
- Year
- 1997
- Tongue
- English
- Weight
- 256 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0022-3263
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## Abstract Die Synthese gemischter brom‐ und chlorsubstituierter 4‐Methylen‐bicyclo[3.2.0]hepta‐2,6‐diene **6b, c** aus Hexachlorcyclopentadien und entsprechenden Trihalogenethylenen wird beschrieben. Die Valenzisomerisierung **6a → 7** ist reversibel. Thermisch (bei 340 °C) entsteht **7** aus **6