... However, when XV is treated with 2 moles of morpholine in refluxing ethanol, the reaction proceeds to the extent of 50% in 18 hr to give the “normal” (6) EE Reid, “Organic Chemistry of Bivalent Sulfur,” Vol. ... Sac. Japan, 74, (11) J. C. Chivers and S. Smiles, J . Chem. ...