Abstract:
A method of converting lignin to phenolic compounds and dicarboxylates in high yield is described. The method involves the use of peroxy acids to react with lignin at a moderated treatment conditions. The peroxy acids can be used along or in combination of other catalysts that have the capability to lower the molecular weight of lignin. A phenolic compounds yield is achieved (> 60%) and these phenolic compounds represents high value precursors for various applications include but not limited to antioxidants, health improvement agents, anticorrosive agents, liquid fuel components and performance enhancing agents, resin and adhesives. Dicarboxylic acids can be used for polymer applications or hydrodeoxygenation to hydrocarbon fuel.
Abstract:
The present disclosure is related to silica-based Lewis acid catalysts, being essentially devoid of strong Bronsted acid character, and their ability to effect the [4+2] cycloaddition and dehydrative aromatization of dienes and dienophiles containing oxygenated substituents to form substituted benzene products. In some embodiments, the processes comprise contacting biomass-derived substrates with ethylene to form terephthalic acid and its derivatives.
Abstract:
A compound of formula (I) wherein R f is -CF 3 , -C 2 F 5 , or -CF 2 CFXCF 3 ; X is -F, or -OC 3 F 7 ; Y is -H, -Cl, or -Br; R is -OH, -(CH 2 ) n OH, -(OCH2CH2) m OH, -(CH 2 ) n (OCH 2 CH 2 ) m OH, -O-C(O)-R 1 , -(CH 2 ) n O-C(O)-R 1 , -(OCH 2 CH 2 ) m OC(O)-R 1 , -C(O)NH w (CH 2 CH 2 OH) 2-w , -C≡N, C≡CH, or -C(O)R 2 ; n is 1 to 10; m is 1 to 10; R 1 is C 1 to C 10 alkyl; R 2 is -H, C 1 to C 10 alkyl, -Cl, or -OCH 2 CH 2 OH; a is 1 to 5; b is 1 to 5; and w is 0, 1 or 2.
Abstract:
Co-crystals comprising a) a herbicide compound A, which is 3,6-dichloro-2-methoxybenzoic acid (dicamba), and b) a co-crystal former B, which is selected from the group of aromatic, N- containing heterocycles; and their use in agrochemical compositions.
Abstract:
There is provided a compound which is (a) a pyrimidine sulfonamide of formula (I) or (b) a pharmaceutically acceptable salt thereof, crystalline forms of the compound, processes for obtaining the compound, pharmaceutical intermediates used in the manufacture of the compound, and pharmaceutical compositions containing the compound. The compound is useful in the treatment of a disease/condition in which modulation of chemokine receptor activity is beneficial.
Abstract:
Ethers of aromatic acids are produced from halogenated aromatic acids in a reaction mixture containing a copper (I) or copper (II) source and a diamine ligand that coordinates to copper.
Abstract:
This application relates to a compound of formula (I) (or a prodrug thereof or a pharmaceutically acceptable salt of the compound or prodrug thereof) as defined herein, pharmaceutical compositions thereof, and its use as an inhibitor of factor Xa and/or thrombin, as well as a process for its preparation and intermediates therefor.
Abstract:
The invention relates to the compounds of formula 1, their preparation and the pharmaceutical compositions containing the compounds. The invention also relates to the use of the compounds of formula I in preparing medicines, which can treat sexual dysfunction of animals including human (male and female), especially erectile dysfunction of male and the diseases in which the function of phospholipase 5 (cGMP PDE5) is involved.
Abstract:
This invention relates to compounds of the general formula (I) useful as modulators of the KCNQ channel, to pharmaceutical compositions comprising these compounds, and to methods of treatment herewith.