... Organic Letters. ... Hibbert, Frank. Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999) (1974), (15), 1862-6CODEN: JCPKBH ; ISSN ... In 20% (vol.) dioxane-H2O, the rate for II was ∼100 times lower than for I. H transfer involving I and II ...