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NMR Experiments on Acetals: XXIX. The Ease of Acetonide Formation of Some Glycols

1970; Wiley; Volume: 79; Issue: 9-10 Linguagem: Inglês

10.1002/bscb.19700790903

0037-9646

M. Anteunis, Y. Rommelaere,

Crystallization and Solubility Studies

Abstract The ease of acetonide formation for some 1,2‐ and 1,3‐glycols is measured and in the discussion of the equilibrium data (tables I and II), obtained by quantitative evaluation as a function of temperature, emphasis is placed upon the pronounced entropy decrease, and its consequence in the interpretation. All cyclizations are found to be favoured by enthalpy decreases but are governed by entropy changes.