Title
| - Qhiral pathways in the thermal rearrangement of 3,7-dimethylene-1-ethyltricyclo[4.1.02,4]heptane to 2,5-dimethylene-3-ethylbicyclo[4.1.0]hept-3-ene. Decyclization of a pair of 2,2'-linked methylenecyclopropanes avoids a symmetrical 2,5-dimethylenecyclohept-3-ene-1,6-diyl biradical intermediate
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