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单词 exomethylene
释义

exomethylene

English

Etymology

exo- + methylene

Noun

exomethylene (plural exomethylenes)

  1. (organic chemistry) A methylene group attached by a double bond to the outside of a ring
    • 2015 August 19, “Isoflavonoids from Crotalaria albida Inhibit Adipocyte Differentiation and Lipid Accumulation in 3T3-L1 Cells via Suppression of PPAR-γ Pathway”, in PLOS ONE, DOI:10.1371/journal.pone.0135893:
      Furthermore, the 1 H NMR spectrum of 1 also exhibited the presence of a 2″-isopropenyl dihydrofuran ring—a methyl group singlet signal at δ H 1.72 (3H, s, H-5″) and two broad singlets for an exomethylene group signal at δ H 4.82 (1H, s, Ha-4″) and 5.03 (1H, s, Hb-4″).
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