SEARCH Articles Figures Tables Bicyclo butane Bicyclo butane Bicyclo butane derivs Bicyclo butane nitrile Bicyclo butane radical cation Bicyclo butane ring Bicyclo butane, 1-methylcycloaddition reactions Bicyclo butane, from 1,3-butadiene Bicyclo butane, reactivity Bicyclo butanes structure Bicyclo[1.1.0 butanes, formation Sodium, with l-bromo-3-chlorocyclobutane to give bicyclo butane