Studies on the Pyrimidine Derivatives. XXVII. A New Method for Synthesis of Diethyl Ethoxycarbonylphosphite from Tris (ethoxythiocarbonyl) Phosphorotrithioite, and on the Reactions of these Organo-phosphorus Compounds with Thiamine Sodium Salt.
作者:Akira Takamizawa、Yoshiro Sato
DOI:10.1248/cpb.12.398
日期:——
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。