Abstract:
Embodiments of the present invention are directed to the conversion of a source material (e.g., a depolymerized oligosaccharide mixture, a monomeric sugar, a hydrolysate, or a mixture of monomeric sugars) to intermediate molecules containing 7 to 26 contiguous carbon atoms. These intermediates may also be converted to saturated hydrocarbons. Such saturated hydrocarbons are useful as, for example, fuels.
Abstract:
A method for the preparation of 1,3-diketones is disclosed wherein the method comprises the steps of: (A) mixing an alkali metal base with a hindered alcohol in an aromatic hydrocarbon solvent; (B) boiling the mixture and azeotropically distilling water formed by the reaction between the base and the alcohol, whereby a solution of a hindered alkali metal alkoxide is formed in situ in the solvent; (C) mixing an ester with the solution of the hindered alkali metal alkoxide in the aromatic hydrocarbon solvent; and then (D) adding a ketone to the mixture.
Abstract:
The present invention provides a process for selectively converting dihydroxy-or polyhydroxy alcohols into carbonyl compounds which process comprises the step of oxidizing the dihydroxy-or polyhydroxy alcohols with dioxygen (O2) as oxidant in the presence of a catalytic system comprising (1) a copper salt, a copper salt containing a heterocyclic ligand or a copper complex salt, and (2) a base.
Abstract translation:本发明提供了一种选择性地将二羟基或多羟基醇转化为羰基化合物的方法,该方法包括在二氧化或多羟基醇存在下,将二羟基或多羟基醇用二氧化钛(O 2 O 2) 催化体系包括(1)铜盐,含有杂环配位体的铜盐或铜络合盐,和(2)碱。
Abstract:
A PROCESS COMPRISING THE CATALYTIC AIR OXIDATION OF METHACROLEIN DIMER (3,4-DIHYDRO-2,5-DIMETHYL-2H-PYRAN2-CARBOXALDEHYDE) TO PRODUCE ACETONYLACETONE (2,5-HEXANEDIONE) AND P-CRESOL IS DISCLOSED. CONVENTIONAL TRANSITION METAL OXIDATION CATALYSTS ARE USED.