24573-30-6Relevant academic research and scientific papers
CONVERSION OF A MULTIHYDROXYLATED-ALIPHATIC HYDROCARBON OR ESTER THEREOF TO A CHLOROHYDRIN
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Page/Page column 33-37, (2008/06/13)
The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts. In addition, certain catalysts of the present invention may be used in the present process at superatmospheric, atmospheric and subatmospheric pressure conditions with improved results.
The solvent effects in the reactions of carboxylic acids with oxiranes. 1. Kinetics of the reaction of acetic acid with epichlorohydrin in butan-1-ol
Bukowski, Wiktor
, p. 378 - 387 (2007/10/03)
Kinetics of the reaction of acetic acid with epichlorohydrin in the presence of chromium(III) acetate in butan-1-ol solution have been studied. The partial reaction orders with respect to reagents were found. The reactions were of first-order with respect to both epichlorohydrin and catalyst and zeroth order with respect to acetic acid. A kinetic model for the overall process has been proposed. The reaction constants have been calculated along with the activation parameters. The effect of dilution on the rate of addition is discussed. In the equimolar mixture of acetic acid and epichlorohydrin the apparent rate constant of the addition k1 initially decreases to increase again at the concentration of butan-1-ol exceeding 3 M.
Distannoxane-catalyzed selective acetylation of 3-chloropropane-1,2- diol: A convenient synthesis of enantiopure epichlorohydrin
Orita, Akihiro,Ito, Toshihide,Yasui, Yutaka,Otera, Junzo
, p. 1927 - 1929 (2007/10/03)
A distannoxane catalyst effects exclusive acetylation of the primary alcohol of 3-chloropropane-1,2-diol. This reaction provides a convenient access to enantiopure epichlorohydrin.
