methylとは

発音

• (Received 発音) enPR: mĕʹthĭl, IPA^(key): /ˈmɛθaɪl/, /ˈmɛθɪl/, /ˈmiːθaɪl/, /ˈmiːθɪl/
• (米国発音, Canada) IPA^(key): /ˈmɛθəl/

名詞

methyl (複数形 methyls)

1. (organic chemistry) The univalent hydrocarbon radical, CH₃-, formally derived from methane by the loss of a hydrogen atom; a compound or part of a compound formed by the attachment of such a radical.
   • 1973, Robert E. Cornish, Vitamin and Mineral Deficiencies, page 119,

     You might point out in the theory of oxidation of oils, in development of rancidity in oils, that many methyls accelerate this oxidation of oils. I do not want to burden you with a lecture on chemistry but there are some methyls like iron which has both a valence of two and of three. Another example is cobalt which has a valence of both two and three.

   • 2003, Russell Timkovich, 73: The Family of d-Type Hemes: Tetrapyrroles with Unusual Substituents, Karl M. Kadish, Kevin M. Smith, Roger Guilard (editors), The Porphyrin Handbook, Volume 12: The Iron and Cobalt Pigments: Biosynthesis, Structure and Degradation, page 134,

     The southern acetates must be decarboxylated to methyls.

   • 2005, Bruce A. Hathaway, Organic Chemistry the Easy Way, page 38,

     The most stable form has the groups staggered and the methyls as far from each other as possible (DA^{[dihedral angle]} = 180°).

派生語