Hycat™ Catalysts are more than just Epoxy Reaction Accelerators
By Renato Rindone/President & Director of Research
Volume I, Issue September, 2009
If Hycat™ catalysts accelerates the reaction of oxiranes with carboxylic acids, anhydrides and imides, then why can’t the reaction of other small ring compounds be accelerated as well? The use of activated Chromium (III) carboxylates (ACC’s) for the acceleration of reactions of epoxides with carboxylic acids, anhydrides and imides is well known and literature references are documented in the Dimension Technology Chemical Systems, Inc., (DTCS) website. ACC’s can be prepared by a number of synthetic routes. DTCS has developed a cost effective, proprietary process to manufacture ACC’s in commercial quantities. DTCS offers these activated catalysts to chemical industry under the “Hycat™” trade name. As the technology of the use of the Hycat™ catalysts for epoxide ring opening reactions became more understood, one relevant question needed answering. In a recent patent to DTCS [US 6,359,147; Reactions Catalyzed by Chromium (III) Carboxylates; March 19, 2002] that question was answered. Activated Chromium (III) carboxylates (Hycat™) are very effective catalysts to accelerate the reaction of: Aziridines with Carboxylic acids, anhydrides and carbonate esters Alcohols, Diols and Polyols with anhydrides, lactones and carbonate esters Oxetanes with anhydrides, carboxylic acids and imides Epoxides with lactones and carbonate esters Thiiranes with anhydrides and carboxylic acids These reactions will be discussed in more detail in future DTCS-News Letters. Contact DTCS for a copy of the patent or talk to the inventor directly at
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