Heats of reaction of cyclic and acyclic phosphate and phosphonate esters. Strain discrepancy and steric retardation
作者:Scott D. Taylor、Ronald Kluger
DOI:10.1021/ja00034a045
日期:1992.4
the rate of hydrolysis of five-membered cyclicphosphateesters compared to their acyclic analogues is purely enthalpic and arises at least partially from destabilization of the four-coordinate cyclic reactant compared to the acyclic analogue, assuming that both react with hydroxide through unstrained five-coordinate transition states. Calorimetric analysis of the hydrolysis of cyclic and acyclic phosphates
Kluger, Ronald; Taylor, Scott D., Journal of the American Chemical Society, 1990, vol. 112, # 18, p. 6669 - 6671
作者:Kluger, Ronald、Taylor, Scott D.
DOI:——
日期:——
Endocyclic cleavage in the alkaline hydrolysis of the cyclic phosphonate methyl propylphostonate: dianionic intermediates and barriers to pseudorotation
作者:Ronald Kluger、Scott D. Taylor
DOI:10.1021/ja00015a027
日期:1991.7
On the basis of the mechanism of reaction deduced from the study of cyclic phosphate triesters, it is expected that the addition of hydroxide generates a five-coordinate phosphorus intermediate that reacts with a second hydroxide to give a dianon. Stereoelectronic properties of this dianionic intermediate prevent pseudorotation and lead to the exclusive formation of the endocyclic cleavage product