Table 2.

Quantum yields (${\Phi }_{\mathrm{P}\mathrm{C}}$ ) for the decay of the excited radical to the photoactive species, decay times (${\tau }_{\mathrm{o}\mathrm{b}\mathrm{s}}$ ), and rate constants for the internal conversion ($k_{\mathrm{I}\mathrm{C}}$ ) and productive reaction ($k_{\mathrm{P}\mathrm{C}}$ ) for different solvents and means of radical generation.

Radical generation method	Solvent	${\Phi }_{\mathrm{P}\mathrm{C}}$ [%]	${\tau }_{\mathrm{o}\mathrm{b}\mathrm{s}}$ [ps]	$k_{\mathrm{P}\mathrm{C}}$ [ps−1]	$k_{\mathrm{I}\mathrm{C}}$ [ps−1]
green LED+DIPEA	MeCN	0.8	0.2	0.04	5.0
green LED+DIPEA	DMSO	3	0.31	0.10	3.1
green LED+DIPEA	CH2Cl2	11	0.48	0.23	1.9
activated Zn	DMSO	3	0.33	0.09	2.9