ammonia in methanol Yield given;

1: 75 percent / 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulfide / toluene / 12 h / 80 °C 2: 70 percent / 1 N aq. NaOH / 6 h / Ambient temperature View Scheme