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methylene group

NOUN
  1. the bivalent radical CH2 derived from methane

How To Use methylene group In A Sentence

  • In addition to formaldehyde, paraformaldehyde, trioxymethylene, methylal, hexamethylene-tetramine, and other substances containing a reactive methylene group, as well as acetaldehyde, benzaldehyde and other aldehydes may be employed to induce reaction. Synthetic Tannins
  • If a pair of geminal protons (CH2) cannot be interchanged through a symmetry operation of the molecule, then these protons are diastereotopic and are NOT chemically equivalent. e.g. the β-methylene protons of amino acids where the methylene group is attached to chiral C Citizendium, the Citizens' Compendium - Recent changes [en]
  • The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds.
  • The most remarkable feature of Tebbe's reagent is a methylene group bridging between titanium and aluminum, which could replace the oxygen in a carbonyl group in a Wittig-like reaction. Richard R. Schrock - Autobiography
  • The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds.
  • Initially our efforts concentrated on the two allyl side chains attached to the heterocycle via a methylene group.
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