352287-97-9

Upstream product

• 352287-96-8 (E)-3-(4-bromophenyl)but-2-enoic acid ethyl ester 
• 90772-57-9 (E)-3-(4-bromo-phenyl)but-2-enoic acid 
• 99-90-1 para-bromoacetophenone 
• 76346-17-3 3-(4-bromophenyl)but-2-enoic acid ethyl ester 

Downstream Products

• 948049-20-5 C₁₀H₁₁BrO₃ 
• 868609-98-7 1-[(E)-3-(4-bromo-phenyl)-but-2-enyl]-4-methyl-piperidin-4-ol 
• 21866-72-8 (E)-3-(p-bromophenyl)-but-2-enal 
• 868609-95-4 1-bromo-4-((E)-3-chloro-1-methyl-propenyl)-benzene 
• 68258-25-3 (+/-)-anti-3-phenyl-1,2-butanediol 

Relevant academic research and scientific papers

Visible-Light-Promoted Intramolecular α-Allylation of Aldehydes in the Absence of Sacrificial Hydrogen Acceptors

We report herein an unprecedented protocol for radical cyclization of aldehydes with pendant alkenes via synergistic photoredox, cobaloxime, and amine catalysis. The transformation was achieved in the absence of external oxidants, providing a variety of 5-, 6-, and 7-membered ring products with alkene transposition in satisfactory yields. The reaction exhibits wide functional group compatibility and occurs under mild conditions with extrusion of H2.

Rh-Catalyzed Asymmetric Hydrogenation of β-Branched Enol Esters for the Synthesis of β-Chiral Primary Alcohols

An asymmetric hydrogenation of β-branched enol esters has been developed for the first time, providing a new route for the synthesis of β-chiral primary alcohols. Using a (S)-SKP-Rh complex bearing a large bite angle and enol ester substrates possessing an O-fomyl directing group, the desired products were obtained in quantitative yields and with excellent enantioselectivities.

Transition-Metal-Free Formylation of Allylzinc Reagents Leading to α-Quaternary Aldehydes

The first example of formylation of allylzinc reagents using S-phenyl thioformate is presented. The reaction proceeded under mild conditions without any transition-metal catalyst, forming quaternary carbon centers with reactive functionalities, such as formyl and vinyl groups. Moreover, Barbier-type formylation of an allylic bromide with a sterically demanding thioformate was achieved. As a preliminary result, asymmetric formylation was conducted using a menthol-derived chiral thioformate.

Alkyne compounds with MCH antagonistic activity and medicaments comprising these compounds

Alkyne compounds of formula I wherein A, B, W, X, Y, Z, R1, and R2 have the meanings given herein, which have MCH-receptor antagonistic activity and are useful for preparing pharmaceutical compositions for the treatment of metabolic disorders and/or eating disorders, particularly obesity and diabetes.

NOVEL ALKYNE COMPOUNDS HAVING AN MCH-ANTAGONISTIC EFFECT, AND MEDICAMENTS CONTAINING SAID COMPOUNDS

The invention relates to alkyne compounds of general formula (I), wherein the groups and radicals A, B, W, X, Y, Z, R1, and R2 have the meanings indicated in claim 1. The invention further relates to medicaments containing at least one inventive alkyne. The disclosed medicaments are suitable for the treatment of metabolic disorders and/or eating disorders, particularly adiposity and diabetes, as a result of the MCH receptor antagonistic activity thereof.

Compounds, their preparation and use

The present invention relates to compounds of the general formula (I) The compounds are useful in the treatment and/or prevention of conditions mediated by nuclear receptors, in particular the Peroxisome Proliferator-Activated Receptors (PPAR).

Enantioselective syntheses of 2-arylpropanoic acid non-steroidal antiinflammatory drugs and related compounds

(S)-2-[4′-(2″-Methylpropyl)phenylpropanoic acid (ibuprofen) and (S)-2-(3′-benzoylphenyl)propanoic acid (ketoprofen) have been synthesised in high enantiomeric excess. Control of stereochemistry was achieved by a combination of Sharpless epoxidalion followed by catalytic hydrogenolysis of the introduced benzylic epoxide oxygen bond. Also, the coupling of organic compounds in the presence of palladium with enantiopure 2-(3-iodophenyl)propanoic and 2-(4-iodophenyl)propanoic acids, prepared by the methodology above, is a general method for the synthesis of optically active arylpropanoic acids.