On the reaction of potassium O-ethyl thiocarbonate (I) or potassium O-ethyl dithiocarbonate (IV) with phosphorus trichloride, tris (ethoxycarbonyl) phosphorotrithioite (IIa) or tris (ethoxythiocarbonyl) phosphorotrithioite (V) were synthesized, respectively. From the treatment of IIa or V with ethyl chloroformate, the same product, diethyl ethoxy-carbonylphosphite (IIIa), accompanied by carbonyl sulfide and ethyl chloride from IIa, and carbon disulfide and ethyl chloride from V, were given in high yield. When tris (alkoxycarbonyl) phosphorotrithioite (II) and thiamine sodium salt (VII) were reacted together, O, S-bis (alkoxycarbonyl) thiamine (IX) was produced. On the other hand, from the reaction of dialkyl ethoxycarbonylphosphite with VII, O, S-bis (ethoxycarbonyl)-thiamine (IXa) was also obtained, but in this cases S-alkylthiamines were main products.
O-乙基
硫代
碳酸钾(I)或 O-乙基二
硫代
碳酸钾(IV)与
三氯化磷反应后,分别合成了三(乙氧基羰基)
亚磷酸三酯(IIa)或三(乙氧基
硫代羰基)
亚磷酸三酯(V)。用
氯甲酸乙酯处理 IIa 或 V,可得到相同的产物--乙氧羰基
亚磷酸二乙酯(IIIa),同时还可从 IIa 中得到
硫化羰基和
氯乙烷,从 V 中得到
二硫化碳和
氯乙烷,而且产率很高。当三(烷氧基羰基)
亚磷酸三酯(II)和
硫胺素钠盐(VII)一起反应时,生成 O,S-双(烷氧基羰基)
硫胺素(IX)。另一方面,
亚磷酸二烷基乙氧羰基酯与
硫胺钠盐(VII)反应也会生成 O,S-双(乙氧羰基)
硫胺(IXa),但在这种情况下,S-烷基
硫胺是主要产物。