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regioselectivity

Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun uncountable The condition of being regioselective
  • noun countable The degree to which a reaction if regioselective

Etymologies

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Examples

  • However, when the researchers tethered a silyl ether-a group containing silicon, oxygen, and hydrocarbon atoms-to the end of the triple-bonded carbon substrate, the carbometalation proceeded with extremely high regioselectivity; over 99% of the final product was isolated as a single chemical isomer.

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  • What is difficult, though, is controlling the regioselectivity of the catalytic addition-the precise positions where the organic and metal units add to the unsaturated carbon bonds.

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  • Further experiments revealed that the combination of a silyl ether tether group and a scandium-based catalyst enabled controllable carbometalation on numerous unsaturated organic molecules-in many cases, with higher regioselectivity than any other catalyst.

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  • When the team first attempted carbometalation with the scandium catalyst and a typical triple-bonded carbon molecule, it achieved only moderate regioselectivity, similar to other transition metal catalysts.

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  • What is difficult, though, is controlling the regioselectivity of the catalytic addition-the precise positions where the organic and metal units add to the unsaturated carbon bonds.

    Nano Tech Wire

  • Further experiments revealed that the combination of a silyl ether tether group and a scandium-based catalyst enabled controllable carbometalation on numerous unsaturated organic molecules-in many cases, with higher regioselectivity than any other catalyst.

    Nano Tech Wire

  • When the team first attempted carbometalation with the scandium catalyst and a typical triple-bonded carbon molecule, it achieved only moderate regioselectivity, similar to other transition metal catalysts.

    Nano Tech Wire

  • A comparison of regioselectivity and rate of con - version with calculated molecular orbital substrate characteristics.

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  • 2153-2161 (1985) [13] Schwab, J.M.; Li, W.; Thomas, L.P.: Cyclohexanone oxygenase: stereochem - istry, enantioselectivity, and regioselectivity of an enzyme-catalyzed Baeyer-Villiger reaction.

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