Kinetic Study on the Interactions of Cyclodextrins with Organic Phosphates and Thiophosphates

T Nagata, K Yamamoto, K Yoshikiyo, Y Matsui…

Index: Nagata, Takuya; Yamamoto, Kenta; Yoshikiyo, Keisuke; Matsui, Yoshihisa; Yamamoto, Tatsuyuki Bulletin of the Chemical Society of Japan, 2009 , vol. 82, # 1 p. 76 - 80

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Citation Number: 3

Abstract

α-Cyclodextrin (α-CD) and 6-O-α-D-glucopyranosyl-β-cyclodextrin (G1-β-CD) affected the rates of phenol release from a few dimethyl (nitrophenyl) phosphates and the corresponding thiophosphates in aqueous alkaline solutions. Curve-fitting analysis of changes in the rate constants with CD concentrations showed that both α-CD and G1-β-CD form not only 1: 1 but also 2: 1 (host: guest) complexes with the phosphates and thiophosphates. In 1: 1 ...