Combination vs. disproportionation in dialkyl biradicals. Selectivity reversal in a crystalline solid.
While 1,6-biradicals produced by photodecarbonylation of dimethyl 11-oxodibenzo[c,h]bicyclo[4.4.1]undeca-3,8-diene-1,6-dicarboxylate (1) react exclusively by disproportionation in benzene solution, reactions in crystals lead to radical-radical combination reactions in almost quantitative yield.
Choe
Tina
T
Department of Chemistry and Biochemistry, Loyola Marymount University, Los Angeles, CA 90045-2659, USA. tchoe@lmu.edu
Khan
Saeed I
SI
Garcia-Garibay
Miguel A
MA