Mc. De Souza et al., New symmetric diisopropylphosphoryl-S-alkanedi yldiisothioureas. Investigations on their synthesis, PHOSPHOR SU, 148, 1999, pp. 143-148
Citations number
6
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
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 c
oordination sites involving O, P, N and S as donors atoms. For their synthe
sis, common two-phase reactions between the corresponding diisothiourea der
ivatives 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 cha
in (I; n = 3, n = 5) were prepared by this method.