83140-93-6Relevant articles and documents
NOVEL SMALL MOLECULE SHC BLOCKERS FOR TREATING LIVER DISEASE AND METABOLIC DISEASE
-
Paragraph 00254; 00263, (2021/07/10)
The subject matter disclosed herein is directed to novel She inhibitors of Formula (II). These compounds are useful for treating impaired insulin sensitivity, glucose tolerance, obesity, diabetes, metabolic syndrome, NAFLD, NASH, PSC, PBC, or other metabo
Palladium-Catalyzed Chlorocarbonylation of Aryl (Pseudo)Halides Through In Situ Generation of Carbon Monoxide
Bismuto, Alessandro,Boehm, Philip,Morandi, Bill,Roediger, Sven
, p. 17887 - 17896 (2020/08/19)
An efficient palladium-catalyzed chlorocarbonylation of aryl (pseudo)halides that gives access to a wide range of carboxylic acid derivatives has been developed. The use of butyryl chloride as a combined CO and Cl source eludes the need for toxic, gaseous carbon monoxide, thus facilitating the synthesis of high-value products from readily available aryl (pseudo)halides. The combination of palladium(0), Xantphos, and an amine base is essential to promote this broadly applicable catalytic reaction. Overall, this reaction provides access to a great variety of carbonyl-containing products through in situ transformation of the generated aroyl chloride. Combined experimental and computational studies support a reaction mechanism involving in situ generation of CO.
Organic synthesis via magnetic attraction: Benign and sustainable protocols using magnetic nanoferrites
Nasir Baig,Varma, Rajender S.
, p. 398 - 417 (2013/03/14)
Magnetic nano-catalysts have been prepared using simple modification of iron ferrites. The nm size range of these particles facilitates the catalysis process, as an increased surface area is available for the reaction; the easy separation of the catalysts by an external magnet and their recovery and reuse are additional beneficial attributes. Glutathione bearing nano-ferrites have been used as organocatalysts for the Paal-Knorr reaction and homocoupling of boronic acids. Nanoferrites, post-synthetically modified by ligands, were used to immobilize nanometals (Cu, Pd, Ru, etc.) which enabled the development of efficient, sustainable and green procedures for azide-alkynes-cycloaddition (AAC) reactions, C-S coupling, O-allylation of phenol, Heck-type reactions and hydration of nitriles.
Magnetic Nanoparticle-Supported Glutathione as a Sustainable Organocatalyst
-
Page/Page column 6-8, (2011/04/14)
This invention relates to the use of nano-organocatalysts, and, more specifically, to the use of magnetic nanomaterial-supported organocatalysts. It is an object of the present invention to provide “green” catalysts and protocols. According to one embodiment of the invention, a nano-organocatalyst in the form of a magnetic nanomaterial-supported organocatalyst is provided. According to other embodiments of the invention, glutathione and cysteine are provided as organocatalysts and magnetic nanomaterial-supported glutathione and magnetic nanomaterial-supported cysteine are provided for use as nano-organocatalysts. According to another embodiment of the invention, a method of using a recyclable magnetic nanomaterial-supported organocatalyst using a totally benign aqueous protocol, without using any organic solvent in the reaction or during the workup, is provided. According to a further embodiment of the invention, a recyclable magnetic nanomaterial-supported organocatalyst for various organocatalytic reactions, including but not limited to Paal-Knorr reactions, aza-Michael addition and pyrazole synthesis, is provided.
Nano-organocatalyst: magnetically retrievable ferrite-anchored glutathione for microwave-assisted Paal-Knorr reaction, aza-Michael addition, and pyrazole synthesis
Polshettiwar, Vivek,Varma, Rajender S.
experimental part, p. 1091 - 1097 (2010/03/25)
Postsynthetic surface modification of magnetic nanoparticles by glutathione imparts desirable chemical functionality and enables the generation of catalytic sites on the surfaces of ensuing organocatalysts. In this article, we discuss the developments, unique activity, and high selectivity of nano-organocatalysts for microwave-assisted Paal-Knorr reaction, aza-Michael addition, and pyrazole synthesis. Their insoluble character coupled with paramagnetic nature enables easy separation of these nano-catalysts from the reaction mixture using external magnet, which eliminates the requirement of catalyst filtration.
Magnetic nanoparticle-supported glutathione: A conceptually sustainable organocatalyst
Polshettiwar, Vivek,Baruwati, Babita,Varma, Rajender S.
supporting information; experimental part, p. 1837 - 1839 (2009/10/23)
A conceptually novel nanoparticle-supported and magnetically recoverable organocatalyst has been developed, which is readily prepared from inexpensive starting materials in a truly sustainable manner; which catalyzes the Paal-Knorr reaction with high yield in pure aqueous medium that avoids the use of toxic organic solvents, even in the workup step.
Substituted alkylamine derivatives
-
, (2008/06/13)
The substituted alkylamine derivatives represented by formula (I) STR1 wherein R1 represents (a) substituted or unsubstituted C2-6 alkenyl group, (b) substituted or unsubstituted C3-6 cycloalkenyl group, (c) substituted or unsubstituted C2-6 alkynyl group, (d) substituted or unsubstituted aryl group, (e) substituted or unsubstituted heterocyclic group, (f) fused heterocyclic group which may be substituted, or (g) group represented by the formula Ru11 -Ar wherein R11 is a heterocyclic group and Ar is a 5- or 6-membered aromatic ring which may contain a hetero N, O or S atom, and which may be substituted; STR2 represents a 5- or 6-membered aromatic ring which may contain a hetero N, O or S atom, and may be substituted by R7, X and Y are linking groups, R2 is H or lower alkyl, R3 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl or lower cycloalkyl, R4 and R5 are independently hydrogen or halogen atoms, R6 represents (a) substituted or unsubstituted acyclic hydrocarbon group which may be unsaturated, (b) substituted or unsubstituted cycloalkyl group, or (c) substituted or unsubstituted phenyl group, or non-toxic salts thereof. (E)-N-(6-6-dimethyl-2-hepten-4-ynyl)-N-ethyl-3-[4-(3-thienyl)-2-thienyl-methyloxy]benzylamine hydrochloride is a representative example. The substituted alkylamine derivatives are useful as pharmaceuticals, particularly for the treatment and prevention of hypercholesterolemia, hyperlipemia and arteriosclerosis.
Inhibition of Copper-Dependent Amine Oxidases by Some Hydrazides of Pyrrol-1-ylbenzoic and Pyrrol-1-ylphenylacetic Acids
Artico, Marino,Corelli, Federico,Massa, Silvio,Stefancich, Giorgio,Avigliano, Luciana,et al.
, p. 802 - 806 (2007/10/02)
Some hydrazides of pyrrol-1-ylbenzoic and pyrrol-1-ylphenylacetic acids were prepared, and their effect on copper-dependent amine oxidases (Cu-AOs) and FAD monoamine oxidases (MAOs) activities was tested.The compounds were not substrates for Cu-AO enzymes
3-(Pyrrol-1-yl)phenylmethyl esters and intermediates
-
, (2008/06/13)
3-(Pyrrol-1-yl)phenylmethyl esters and intermediates having the general formula STR1 the use of the esters as pesticides, compositions thereof and a process for preparation are disclosed and exemplified.