What is h phosphonate?
What is h phosphonate?
The third phosphonylating reagent commonly used in our laboratories is diphenyl H-phosphonate (DPHP) 3, a reagent in which the electron withdrawing effect of both the phenyl groups makes the phosphorus center sufficiently electrophilic to effect a rapid transesterification with alcohols, including nucleosides ( …
What is a phosphonate ester?
Phosphonate salts are the result of deprotonation of phosphonic acids, which are diprotic acids: Phosphonate esters are the result of condensation of phosphonic acids with alcohols.
What is phosphite used for?
Phosphite salts can be used as a biodegradable fungicide to protect plants against Phytophthora dieback. It is usually applied as potassium phosphite, derived from phosphorous acid neutralized with potassium hydroxide.
How are phosphites made?
Phosphite esters are typically prepared by treating phosphorus trichloride with an alcohol. Depending on the synthetic details, this alcoholysis can give the diorganophosphites: PCl3 + 3 C2H5OH → (C2H5O)2P(O)H + 2 HCl + C2H5Cl. This process is reversible and can be used to produce mixed alkyl phosphites.
What is po43 chemical name?
Phosphate
Phosphate(3-) is a phosphate ion that is the conjugate base of hydrogenphosphate. It is a phosphate ion and a trivalent inorganic anion.
What is the difference between phosphite and phosphate?
Biologically, the fundamental differences between phosphate and phosphite are vast. The difference in molecular structure between phosphate and phosphite means that phosphite cannot substitute for phosphate in the essential biochemistry of life. Phosphite molecules have bond angles of 107 degrees.
What is H-phosphonates and how does it work?
Chemistry and Application of H-Phosphonates is an excellent source for those planning the synthesis of new phosphorus-containing compounds and in particular derivatives containing a phosphonate, phosphoramide or phosphonic acid diester group.
How do you make dialkyl H-phosphonates?
The second procedure is the production from H-phosphonic acid; there are a few patents devoted to the preparation of dialkyl H-phosphonates through direct esterification of H-phosphonic acid with alcohols. The third procedure is the preparation from white phosphorus and alcohols.
What are phosphonic acid esters?
Phosphonic acid esters are intermediates in the synthesis of important classes of compounds such as alpha-aminophosphonic acids, bisphosphonates, epoxyalkylphosphonates, alpha-hydroxyalkylphosphonates, phosphoramides, poly (alkylene H-phosphonate)s, poly (alkylene phosphate)s, nucleoside H-phosphonates.
What is the difference between phosphonates and phosphonic acids?
Phosphonates feature tetrahedral phosphorus centers. They are structurally closely related to (and often prepared from) phosphorous acid. Phosphonic acids and derivatives are chemically and structurally related to phosphorous acid. Phosphonate salts are the result of deprotonation of phosphonic acids, which are diprotic acids:
