(-)-sparteine in dimethyl sulfoxide T=60°C; 192 h;

2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in toluene IrradiationΔH(excit.)(E-5)-ΔH(excit.)(Z-5); ΔS(excit.)(E-5)-ΔS(excit.)(Z-5); or iodide; other temperatures; Product distributionThermodynamic data;