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  2. Structural isomer - Wikipedia

    en.wikipedia.org/wiki/Structural_isomer

    A skeletal isomer of a compound is a structural isomer that differs from it in the atoms and bonds that are considered to comprise the "skeleton" of the molecule. For organic compounds , such as alkanes , that usually means the carbon atoms and the bonds between them.

  3. Curtin–Hammett principle - Wikipedia

    en.wikipedia.org/wiki/Curtin–Hammett_principle

    The Curtin–Hammett principle is a principle in chemical kinetics proposed by David Yarrow Curtin and Louis Plack Hammett.It states that, for a reaction that has a pair of reactive intermediates or reactants that interconvert rapidly (as is usually the case for conformational isomers), each going irreversibly to a different product, the product ratio will depend both on the difference in ...

  4. Isomer - Wikipedia

    en.wikipedia.org/wiki/Isomer

    Isomers do not necessarily share similar chemical or physical properties. Two main forms of isomerism are structural (or constitutional) isomerism, in which bonds between the atoms differ; and stereoisomerism (or spatial isomerism), in which the bonds are the same but the relative positions of the atoms differ. Isomeric relationships form a ...

  5. Rearrangement reaction - Wikipedia

    en.wikipedia.org/wiki/Rearrangement_reaction

    In organic chemistry, a rearrangement reaction is a broad class of organic reactions where the carbon skeleton of a molecule is rearranged to give a structural isomer of the original molecule. [1] Often a substituent moves from one atom to another atom in the same molecule, hence these reactions are usually intramolecular. In the example below ...

  6. Alcohol (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Alcohol_(chemistry)

    In chemistry, an alcohol (from Arabic al-kuḥl 'the kohl'), [2] is a type of organic compound that carries at least one hydroxyl (−OH) functional group bound to a saturated carbon atom. [ 3 ] [ 4 ] Alcohols range from the simple, like methanol and ethanol , to complex, like sugars and cholesterol .

  7. My daughter repeated kindergarten because she couldn't read ...

    www.aol.com/daughter-repeated-kindergarten...

    The mom of two was disappointed her district didn't teach phonics as part of its literacy program. She switched her child to a Catholic school where the girl thrived after being taught phonics.

  8. Regioselectivity - Wikipedia

    en.wikipedia.org/wiki/Regioselectivity

    In organic chemistry, regioselectivity is the preference of chemical bonding or breaking in one direction over all other possible directions. [1] [2] It can often apply to which of many possible positions a reagent will affect, such as which proton a strong base will abstract from an organic molecule, or where on a substituted benzene ring a further substituent will be added.

  9. Amyl alcohol - Wikipedia

    en.wikipedia.org/wiki/Amyl_alcohol

    Amyl alcohol isomers; Common name Structure Type IUPAC name Boiling point (°C) [3] 1-pentanol or normal amyl alcohol primary Pentan-1-ol: 138.5 2-methyl-1-butanol or active amyl alcohol primary 2-Methylbutan-1-ol: 128.7 3-methyl-1-butanol or isoamyl alcohol or isopentyl alcohol primary 3-Methylbutan-1-ol: 131.2 2,2-dimethyl-1-propanol or ...