regioselectivity


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regioselectivity

[‚rē·jē·ō‚si·lek′tiv·əd·ē]
(biochemistry)
Control over the location of reaction in a complex molecule.
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We believe that the present protocol because of high diastereo and regioselectivity, excellent yields and short reaction times under microwave irradiation could be considered as a prominent tool for synthesis of potentially bioactive spiropyrrolizidine alkaloid skeletons.
In addition to achieving regioselectivity, synthetic chemists must deal with another ambiguity in the formation of a glycosidic bond.
Glucuronic acid was preferentially introduced into 5-OH, whereas no obvious regioselectivity was observed in the methylation of 11-OH and 12-OH.
8:45 [3+2] CYCLOADDITION REACTIONS OF NITRILE OXIDES AND DIENES: EFFECT OF REACTION CONDITIONS ON REGIOSELECTIVITY, Bernabe Tucker *, Gloria de la Garza, Jesse Prince, and Jenny M.
Toward a Better Understanding of the Regioselectivity of the A1 (III)-Protocatechuic Acid Complexation Reaction.
At present, SIBR is usually synthesized via anionic ter-polymerization of St, isoprene (Ip), and butadiene (Bd) with alkyl lithium initiators; however, anionic polymerization is not the proper one for the regioselectivity to conjugated olefins [6].
The first chapter discusses the modes of selectivity: chemoselectivity, regioselectivity, stereoselectivity, and enantioselectivity, with examples and comments on synthetic strategy.
This research proposal aims to develop direct transition metal-catalyzed functionalizations of C(sp3)H bonds in saturated nitrogen-based heterocycles, with a particular focus on compatibility with a very broad range of functional groups, regioselectivity and stereoselectivity.
They also exhibit good chemoselectivity, regioselectivity and enantioselectivity, and as hydrolases they do not require cofactors.
It is possible that the N192S substitution affects the regioselectivity of CYP3A7 toward its substrates and thus is favored by natural selection.