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  2. Bicyclobutane - Wikipedia

    en.wikipedia.org/wiki/Bicyclobutane

    The intermediate 1-bromo-3-chlorocyclobutane can also be prepared via a modified Hunsdiecker reaction from 3-chlorocyclobutanecarboxylic acid using mercuric oxide and bromine: [4] A synthetic approach to bicyclobutane derivatives involves ring closure of a suitably substituted 2-bromo-1-(chloromethyl)cyclopropane with magnesium in THF. [5]

  3. Bicyclic molecule - Wikipedia

    en.wikipedia.org/wiki/Bicyclic_molecule

    The numbers are sometimes omitted in unambiguous cases. For example, bicyclo[1.1.0]butane is typically called simply bicyclobutane. The heterocyclic molecule DABCO has a total of 8 atoms in its bridged structure, hence the root name octane. Here the two bridgehead atoms are nitrogen instead of carbon atoms.

  4. Diradicaloid - Wikipedia

    en.wikipedia.org/wiki/Diradicaloid

    A mixed phosphorus-arsenic diradicaloid was also reported in 2015, the first with different radical centers. The crystal structure revealed a kite-shaped planar four membered ring with a transannular As-P distance of 2.790 Å, which is shorter than the sum of van der Waals radii (3.65 Å) but longer than the sum of covalent radii (2.32 Å). [28]

  5. File:Wurtz-reaction Bicyclobutane synthesis.svg - Wikipedia

    en.wikipedia.org/wiki/File:Wurtz-reaction...

    The following other wikis use this file: Usage on bn.wikipedia.org উর্টজ বিক্রিয়া; Usage on cs.wikipedia.org Wurtzova reakce

  6. Cyclobutane - Wikipedia

    en.wikipedia.org/wiki/Cyclobutane

    Cyclobutane is a cycloalkane and organic compound with the formula (CH 2) 4.Cyclobutane is a colourless gas and is commercially available as a liquefied gas.Derivatives of cyclobutane are called cyclobutanes.

  7. Cyclobutanecarboxylic acid - Wikipedia

    en.wikipedia.org/wiki/Cyclobutanecarboxylic_acid

    Cyclobutanecarboxylic acid is an intermediate in organic synthesis. For example, it is a precursor to cyclobutylamine. [3] References This page was last edited on 11 ...

  8. Category:Bicycloalkanes - Wikipedia

    en.wikipedia.org/wiki/Category:Bicycloalkanes

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  9. Ring strain - Wikipedia

    en.wikipedia.org/wiki/Ring_strain

    In alkanes, optimum overlap of atomic orbitals is achieved at 109.5°. The most common cyclic compounds have five or six carbons in their ring. [6] Adolf von Baeyer received a Nobel Prize in 1905 for the discovery of the Baeyer strain theory, which was an explanation of the relative stabilities of cyclic molecules in 1885.