Results 1 to 10 of about 115,489 (367)

Ab initio study of the mechanism of carboxylic acids cross-ketonization on monoclinic zirconia via condensation to beta-keto acids followed by decarboxylation [PDF]

open access: bronze, 2017
Catalytic mechanism of acetic and isobutyric acids mixture conversion into two symmetrical and one cross-ketone product on monoclinic zirconia (111) surface was extensively modeled by Density Functional Theory for periodic structures.
Bishop, Marc D.   +3 more
core   +4 more sources

Decarboxylative borylation [PDF]

open access: yesScience, 2017
Swapping boron acids for carbon acids Carbon-bound boronic acids and their esters are widely used as coupling partners to make carbon-carbon bonds. More recently, these chemicals have garnered pharmaceutical interest in their own right. Li et al.
Chao Li   +11 more
openaire   +3 more sources

Decarboxylative alkenylation [PDF]

open access: yesNature, 2017
Olefin chemistry, through pericyclic reactions, polymerizations, oxidations, or reductions, has an essential role in the manipulation of organic matter. Despite its importance, olefin synthesis still relies largely on chemistry introduced more than three decades ago, with metathesis being the most recent addition.
Edwards, Jacob T.   +12 more
openaire   +2 more sources

Decarboxylative Alkynylation [PDF]

open access: yesAngewandte Chemie International Edition, 2017
AbstractThe development of a new decarboxylative cross‐coupling method that affords terminal and substituted alkynes from various carboxylic acids is described using both nickel‐ and iron‐based catalysts. The use of N‐hydroxytetrachlorophthalimide (TCNHPI) esters is crucial to the success of the transformation, and the reaction is amenable to in situ ...
Joel M. Smith   +10 more
openaire   +2 more sources

Trichloroacetic acid fueled practical amine purifications

open access: yesBeilstein Journal of Organic Chemistry, 2022
Amine purification have for long been dominated by tedious stepwise processes involving the generation of large amounts of undesired waste. Inspired by recent work on out of equilibrium molecular machinery, using trichloroacetic acid (TCA), we disclose a
Aleena Thomas   +3 more
doaj   +1 more source

Tailoring the Micropore Structure of 6FDA-Based Network Polyimide Membranes for Advanced Gas Separation by Decarboxylation

open access: yesMembranes, 2023
The 6FDA-based network PI has attracted significant attention for gas separation. A facile strategy to tailor the micropore structure within the network PI membrane prepared by the in situ crosslinking method is extremely significant for achieving an ...
Yuxuan Zhao   +5 more
doaj   +1 more source

Carboxylations and decarboxylations [PDF]

open access: yesJournal of Cellular and Comparative Physiology, 1959
A brief survey of decarboxylation reactions and carboxylation reactions that are known or presumed in biological systems will be presented. While a considerable number of amino acid decarboxylations are known, their mechanisms will not be included in the present discussion but will be reserved for a later paper in the symposium.
Calvin, Melvin, Pon, Ning G
openaire   +5 more sources

Continuous Flow Synthesis of Propofol

open access: yesMolecules, 2021
Herein, we report a continuous flow process for the synthesis of 2,6-diisopropylphenol—also known as Propofol—a short-acting intravenous anesthesia, widely used in intensive care medicine to provide sedation and hypnosis.
Romain Mougeot   +3 more
doaj   +1 more source

Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract

open access: yesPolish Journal of Food and Nutrition Sciences, 2020
Betalains are one of the most common groups of plant pigments found in nature, especially in red beetroot ( Beta vulgaris L.) which is the main commercially exploited source of betalains produced in the form of concentrates or powders.
Agnieszka Kumorkiewicz   +4 more
doaj   +1 more source

Light‐Driven Enzymatic Decarboxylation of Dicarboxylic Acids

open access: yesChemistryOpen, 2021
Photodecarboxylase from Chlorella variabillis (CvFAP) is one of the three known light‐activated enzymes that catalyzes the decarboxylation of fatty acids into the corresponding C1‐shortened alkanes.
Yong‐Yi Zeng   +3 more
doaj   +1 more source

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