Catalysts and related processes for producing optically pure beta-lactones from aldehydes and compositions produced thereby

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United States Patent and Trademark Office

Abstract

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Bi-functional cobalt-containing catalysts useful for making stereospecific compounds and compositions, along with methods of making, and uses thereof in the syntheses of optically pure �-lactones from aldehydes and ketene aredescribed. Precursors, intermediates, compositions, and particular features of the use if the compositions, such as high enantiomeric selectivity, high yield and low mole percent of catalyst useful are provided.

Keywords

B0JJ 3112295 (2013.01), C07C 231114 (2013.01), C07C 253/30 (2013.01), C07D 305112 (2013.01), C07D 453/04 (2013.01), C07F 151065 (2013.01), BOJJ 2231/345 (2013.01), BOJJ 2531/845 (2013.01)

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