NEW SYMMETRIC DIISOPROPYLPHOSPHORYL-S-ALKANEDI YLDIISOTHIOUREAS. INVESTIGATIONS ON THEIR SYNTHESIS
Autor: | Denise R. Araripe, Aniy K. Ohara, Janaina C. Kuwata, Marcos C. de Souza, Patricia Camacho Dias |
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Rok vydání: | 1999 |
Předmět: | |
Zdroj: | Phosphorus, Sulfur, and Silicon and the Related Elements. 148:143-148 |
ISSN: | 1563-5325 1042-6507 |
Popis: | Symmetric dialkylphosphoryl-S-alkanediyldiisothiouas (RO)2P(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 diisopropyi 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. |
Databáze: | OpenAIRE |
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