Lawesson's reagent in chlorobenzene 0.666667 h; Heating;

1: Et3N / dimethylformamide / Ambient temperature 2: 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide / chlorobenzene / 0.5 h / Heating View Scheme

1: 24 percent / 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide / chlorobenzene / 8 h / Heating 2: Et3N / dimethylformamide / Ambient temperature 3: 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide / chlorobenzene / 0.5 h / Heating View Scheme

1: tBuSH, TFA / CH2Cl2 / Ambient temperature 2: 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide / chlorobenzene / 0.5 h / Heating View Scheme

1: 57 percent / Lawesson's reagent / chlorobenzene / 3 h / Heating 2: 90 percent / Et3N / dimethylformamide 3: 65 percent / Lawesson's reagent / chlorobenzene / 0.67 h / Heating View Scheme

1: 30 percent / Lawesson's reagent / chlorobenzene / 3 h / Heating 2: 71 percent / Et3N / dimethylformamide / 0.17 h 3: 20 percent / Lawesson's reagent / chlorobenzene / 0.5 h / Heating View Scheme