Results 101 to 110 of about 29,422 (294)
On the functionalization of benzo[e][2,1]thiazine
Beilstein Journal of Organic Chemistry, 2009 The reactions of benzo[e][2,1]thiazine-4-chloro-3-carbaldehydes 1 and benzo[e][2,1]thiazine-4-chloro-3-carbonitriles 2 with a number of oxidizing and reducing agents are reported.
Kirill Popov +2 more
doaj +1 more source
Regioselectivity in the Nitration of Dialkoxybenzenes
, 2016 Dinitrodialkoxybenzene derivatives are important precursors for Schiff base macrocycles and a variety of other molecules. During our investigations, we have found that the dinitration reaction of 1,2-dialkoxybenzenes proceeds with unusual ...
Kevin Shopsowitz (2226526) +2 more
core +1 more source
Molecules, 2019 The [3 + 2] cycloaddition (32CA) reaction of an α-santonin derivative, which has an exocyclic C⁻C double bond, with p-bromophenyl nitrile oxide yielding only one spiroisoxazoline, has been studied within the molecular electron density theory ...
Luis R. Domingo +2 more
doaj +1 more source
Engineering the substrate specificity and regioselectivity of Burkholderia thailandensis lipoxygenase [PDF]
Lipoxygenases (LOXs) catalyze the regioselective dioxygenation of polyunsaturated fatty acids (PUFAs), generating fatty acid hydroperoxides (FAHPs) with diverse industrial applications.
Vincken, Jean-Paul +4 more
core +1 more source
Molecules, 2016 The enzymatic regioselective monopalmitoylation of racemic 9-(2,3-dihydroxypropyl)- adenine (DHPA), an approved antiviral agent, has been performed by an immobilized form of Candida antarctica B lipase (CAL-B) using a 4:1 DMF/hexane mixture as the ...
Jana Brabcová +5 more
doaj +1 more source
Regioselectivity in Hetero Diels–Alder Reactions
, 2019 Regioselectivity in hetero Diels-Alder reactions can be observed in a simple reaction between a nonsymmetrical heterodiene and an unsymmetrical heterodienophile.
Liber, Marta +9 more
core +1 more source
, 2020 Two small 1,1,4,4-tetracyanobutadiene-functionalized chromophores were obtained by careful leverage of the regioselectivity of the cycloaddition reaction of tetracyanoethylene with anthracene-ynamide derivatives, inducing either a [2+2] or a [4+2] Diels ...
Trevor, Hamlin +9 more
core +1 more source
, 2010 P450 3A4, the most important human CYP enzyme, is responsible for the metabolism of more than 50%-60% of clinically used drugs. Early knowing the site of metabolism will help the medicinal chemist to decide how best to block the metabolism of candidates ...
艾纯芝, 杨凌, 毛玉玺
core
Spin effect on redox acceleration and regioselectivity in Fe-catalyzed alkyne hydrosilylation
, 2023 Iron catalysts are ideal transition metal catalysts because of the Earth abundant, cheap, biocompatible features of the iron salts. Iron catalysts often have unique open-shell structures that easily undergo spin crossover in chemical transformations, a ...
Tian-Zhang, Qiao +5 more
core +1 more source
Regioselectivity-Switchable Hydroarylation of Styrenes
, 2016 Cobalt−phosphine and cobalt−carbene catalysts have been developed for the hydroarylation of styrenes via chelation-assisted C−H bond activation, to afford branched and linear addition products, respectively, in a highly regioselective fashion.
Ke Gao (1521607) +1 more
core +1 more source