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Hydrolysis of phosphinamides and the nature of the PN bond

✍ Scribed by Paul Haake; Toru Koizumi


Book ID
104222553
Publisher
Elsevier Science
Year
1970
Tongue
French
Weight
204 KB
Volume
11
Category
Article
ISSN
0040-4039

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✦ Synopsis


Carboxylic amides are quite stable towards chemical hydrolysis; elevated temperatures and high concentrations of acid or base are required for appreciable rates of hydrolysis. Yet, amides of phosphoric acid appear to be highly reactive. Phosphoramidate (&) is a reactive

' was obtained at 90°C; k, for benzamide was reported as 12.5 x 10-5M-'sec-' at 90°C. 7

(4) L. L. Schaleger and F. A. Long, Adv. Phys. Org. Chem.,

1.1 {1963).

(5) P. Haake and D. A. Tyssee, Tetrahedron Letters, 3513 (1970).


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✍ Artur Mucha; Jolanta Grembecka; Tomasz Cierpicki; Paweł Kafarski 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB

## Abstract Phosphonamidate pseudodipeptides, designed as transition state analogue inhibitors of leucine aminopeptidase, revealed unexpected instability in aqueous solutions of pH values varying from acidic up to highly basic. This reaction has been studied in some detail by means of NMR spectrosc