Results 191 to 200 of about 145,591 (257)

Deprotektive Alkylierung: Eine Plattform zur Umsetzung von Alkoholen zu Aminen mittels Nonafluormesitylensulfonamiden

Angewandte Chemie, EarlyView.
Die direkte Umwandlung von Alkoholen in tertiäre oder sekundäre Amine in einem Reaktionsschritt unter Verwendung von Nms‐Amiden wird beschrieben. Die Transformation zeichnet sich durch eine breite Toleranz gegenüber verschiedenen funktionellen Gruppen und eine hohe Stereospezifität aus, was ihre Eignung für die Synthese isotopenmarkierter Arzneimittel ...
Jakub Brześkiewicz, Kunj Kapur, Boris Maryasin, Nuno Maulide   +3 more
wiley   +1 more source

Ein Ruthenium(CAAC‐5)‐Olefin‐Metathese‐Katalysator für die Biokonjugation

Angewandte Chemie, EarlyView.
Die Instabilität von Rutheniumkatalysatoren in wässrigen Lösungen schränkt die Olefinmetathese in biologischen Medien ein. Es wird über einen Ru(CAAC‐5)‐Komplex berichtet, der unter biologisch relevanten Bedingungen aktiv bleibt und die Biokonjugation mit Proteinen, Peptiden und einem künstlichen Metalloenzym ermöglicht.
Damian Alexander Graf, Mikhail Boym, María Álvarez, Tsvetan Kardashliev, Thomas R. Ward   +4 more
wiley   +1 more source

Flavor improvement of enzymatic oyster juice by sequential heating through the accumulation of free amino acids and volatile flavor compounds. [PDF]

Front Nutr
Wang J, Chen T, Jiang Y, Li C, Hou J, Huang X.   +5 more
europepmc   +1 more source

Geminal Difunctionalizations of Aliphatic Ketones and Aldehydes Enabled by Thioacetal Activation and Deep Electroreduction. [PDF]

J Am Chem Soc
Cemalovic NI, Ressler AJ, Hariharan RS, MacMillan SN, Lin S.   +4 more
europepmc   +1 more source

Modular in-plate synthesis of N-heterocycles for direct-to-biology screening. [PDF]

Chem Sci
Sun X, Ye Z, Guo F, Chu X, Chen Y, Li J, Yang T, Zhao B, Zhang B, Jiang S, He G, Qiao T, Lei X, Liu H, Chen G.   +14 more
europepmc   +1 more source

Recent Advances in the Study of Aroma Control and Release Through the Interaction of Matrix Components and Aroma Compounds in Soft Drinks. [PDF]

J Food Sci
Zhang W, Zhao W, Li P, Yang Y, Qi G, Luo Y, Zhang D, Sun S.   +7 more
europepmc   +1 more source

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Aldehydes: α,β-Unsaturated Aldehydes

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
P. R. Mackie, C. E. Foster
openaire   +1 more source

Aldehyde Inhibitors of Aldehyde Dehydrogenases

1999
Aldehyde dehydrogenases catalyze aldehyde dehydrogenation as well as ester hydrolysis. Nitrate esters e.g. isosorbide nitrates and nitroglycerin inhibit the enzyme. Mechanism of inhibition which involves aldehyde dehydrogenase catalyzed formation of a reactive species (Mukerjee and Pietruszko, 1994), which inactivates the enzyme via covalent bond ...
R, Pietruszko, D P, Abriola, G, Izaguirre, A, Kikonyogo, M, Dryjanski, W, Ambroziak   +5 more
openaire   +2 more sources

Rapid Organocatalytic Aldehyde‐Aldehyde Condensation Reactions

European Journal of Organic Chemistry, 2007
AbstractWe report the results of the systematic optimization of the α‐methylenation of aldehydes with aqueous formaldehyde. A simple combination of a secondary amine catalyst and a weak acid co‐catalyst has been identified, allowing access to α‐substituted acroleins in a matter of minutes.
Anniina Erkkilae, Petri M. Pihko
openaire   +1 more source

Aldehydes: Alkyl Aldehydes

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source