NEW SYMMETRIC DIISOPROPYLPHOSPHORYL-S-ALKANEDI YLDIISOTHIOUREAS. INVESTIGATIONS ON THEIR SYNTHESIS
作者:MARCOS C. De Souza、Aniy K. Ohara、Denise R. Araripe、Patrícia Da C. V. Dias、Janaina C. Kuwata
DOI:10.1080/10426509908037006
日期:1999.5.1
Symmetric dialkylphosphoryl-S-allcanediyldiisothioureas (RO)(2)P(O)NHC(=NH)S(CH2)(n) SC(=NH)NHP(O)(OR)(2) (I, R = isopropyl; n = 2-5) have potential coordination sites involving O, P, N and S as donors atoms. For their synthesis, common two-phase reactions between the corresponding diisothiourea derivatives and diisopropyl phosphonate were unsuccessful. Herein we describe a new synthesis for such compounds using diisopropyl chlorophosphonate. Two new bis-phosphorylated alkanediyldiisothioureas with increasing carbon chain (I; n = 3, n = 5) were prepared by this method.
Lin, Whei Oh; Garcia, Gleice Bez; Sachett, Cristina Marques Malavolta, Phosphorus, Sulfur and Silicon and the Related Elements, 1993, vol. 85, # 1-4, p. 113 - 118
作者:Lin, Whei Oh、Garcia, Gleice Bez、Sachett, Cristina Marques Malavolta、Alt, Helmut G.、Milius, Wolfgang