sodium hydrogensulfide in N,N-dimethyl-formamide 0.5 h; Ambient temperature;

1: 48 percent / 60percent sodium hydride / dimethylformamide / 2 h / Ambient temperature 2: 56 percent / 70percent sodium hydrosulfide hydrate / dimethylformamide / 0.5 h / Ambient temperature View Scheme

sodium hydrogencarbonate in dichloromethane 1 h; Ambient temperatureeffect of various bases and reaction times; Product distribution;