Abstract: The invention provides a technology for producing acrolein from glycerol while maintaining high reagent partial pressures, which leads to higher yield. The invention more particularly relates to a method for producing acrolein from glycerol that comprises the intermediate step of forming glycerol and acrolein cyclic acetals.

Abstract: The present invention describes compounds produced from an amino acid molecule and a fatty acid molecule. The compounds being in the form of amino-fatty acid compounds being bound by an anhydride linkage, or mixtures thereof made by reacting amino acids or derivatives thereof with an appropriate fatty acid previously reacted with a thionyl halide. The administration of such molecules provides supplemental amino acids with enhanced bioavailability and the additional benefits conferred by the specific fatty acid.

Abstract: Aryl-substituted and aryl and (3-oxo-1-propenly)-substituted benzopyran, benzothiopyran, 1,2-dihydroquinoline, and 5,6-dihydronaphthalene derivatives have retinoid negative hormone and/or antagonist-like biological activities. The invented RAR antagonists can be administered to mammals, including humans, for the purpose of preventing or diminishing action of RAR agonists on the bound receptor sites. Specifically, the RAR agonists are administered or coadministered with retinoid drugs to prevent or ameliorate toxicity or side effects caused by retinoids or vitamin A or vitamin A precursors. The retinoid negative hormones can be used to potentiate the activities of other retinoids and nuclear receptor agonists. For example, the retinoid negative hormone called AGN 193109 effectively increased the effectiveness of other retinoids and steroid hormones in in vitro transactivation assays. Additionally, transactivation assays can be used to identify compounds having negative hormone activity.

Abstract: This invention relates to the generation of acrolein from an acetal of acrolein via exposure to a sulfonic acid reusable catalytic material. The acrolein acetals have the following general structures; ##STR1## where R may or may not be equal to R' R/R' is an alkyl group having from 1 to 6 carbons; and ##STR2## where R is a cyclic diol derived from ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, glycerol hexoses or polyaccharides.