Figure 1
Synthesis of the chalcogen-bonding catalysts investigated in this report. (i) Ch (2.50 eq.), Cs2CO3 (2.50 eq.), MeOH, reflux, 3 d (2S = 87%; 2Se = 60%); (ii) MeOTf (2.50 eq.), DCM, room temperature, 24 h (3S = 86%; 3Se = 92%) (Ch = S or Se) (Wonner et al., 2019b). |