methyl
nounUK /ˈmɛθaɪl/ · CA, US /ˈmɛθəl/
Etymology Borrowed from German Methyl; compare French méthyle. French chemists Jean-Baptiste Dumas and Eugene Peligot, after determining methanol's chemical structure, introduced "methylene" from the Ancient Greek μέθυ (méthu, “wine”) + ὕλη (húlē, “wood, material”) with the intention of highlighting its origins, "alcohol made from wood (substance)". The term "methyl" was derived in about 1840 by back-formation from "methylene", and was then applied to describe "methyl alcohol".
1
Chemistry, Natural sciences, Organic chemistry, Physical sciences 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.
- 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.1973, Robert E. Cornish, Vitamin and Mineral Deficiencies, page 119:
- The southern acetates must be decarboxylated to methyls.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
1 more example
- The most stable form has the groups staggered and the methyls as far from each other as possible (DA^([dihedral angle]) = 180°).2005, Bruce A. Hathaway, Organic Chemistry the Easy Way, page 38:
- Derived terms
256 terms
1-methyl-4-phenylpyridinium, 2-methyl-1,3-butadiene, 2-methyl-2-propenoic acid, acetoxymethyl, acetylmethylcarbinol, alclometasone, allylmercaptomethylpenicillin, aminomethyl, amoxapine, azamethonium, azidomethyl, azinphos-methyl, bemesetron, bethanechol, bimethyl, bromomethyl, carbamidomethyl, carboxymethyl, cefpirome, cefteram, chlorodimethylphosphine, chloromethyl, cimetropium, cyanomethyl, cyclomethycaine, demethylation, demethylimination, desmethyl, dimethyl, dimethylaminomethyl, dimethylaniline, dimethylarsenide, dimethylarsinate, dimethylbenzanthracene, dimethylhydrazine, dimethylphenol, dimethylsilane, dimethyltransferase, emepronium, epimestrol, esmolol, ethyl methyl cellulose, flumazenil, glimepiride, guaimesal, halomethyl, halosulfuron-methyl, heptamethyl, hexamethyl, hexamethylphosphoramide, hydroxymethyl, hydroxymethylfurfural, hydroxymethylsulfonate, hydroxypropyl methyl cellulose, imazamethabenz-methyl, indometacin, iodomethyl, iomazenil, isobutylmethylxanthine, kresoxim-methyl, lormetazepam, mecamylamine, mechlorethamine, meclonazepam, mecysteine, medrogestone, medroxyprogesterone, mefenamic, mefloquine, megestrol, meloxicam, menabitan, menadione, menaquinone, menitrazepam, meperidine, mephenytoin, mepivacaine, meprobamate, meprylcaine, mestanolone, mesuximide, metazocine, methacholine, metharbital, methene, methionine, metho-, methohexital, methoxyl, methoxymethyl, methyl acetate, methylacetylene, methyl acrylate, methyladenine, methylal, methyl alcohol, methylamine, methylamino, methylammonium, methylamphetamine, methylarginine, methylase, methylate, methylation, methylatropine, methylbenzene, methyl blue, methyl bromide, methylcarbamate, methylcarbinol, methyl cellulose, methyl chloride, methyl chloroform, methylchloroform, methylchloroisothiazolinone, methylcobalamin, methyl cyanide, methylcyclopentadiene, methylcytosine, methyldesorphine, methyldigoxin, methyldihydromorphine, methyldopa, methylecgonidine, methylergometrine, methylergonovine, methylerythritol, methyl ethyl ketone, methyl ethyl ketone peroxide, methyl fluoride, methyl formate, methylglyoxal, methyl group, methylguanine, methylhistamine, methylhistidine, methyl hydrate, methyl hydroxide, methylic, methylimidazole, methylimidazolium, methylindole, methylindolizidine, methyl iodide, methyl isobutyl ketone, methylisocyanate, methylisocyanide, methylisoxazole, methyl jasmonate, methylketol, methyllanthionine, methyllithium, methyllorazepam, methyllysine, methylmagnesium, methylmalonic, methylmalonic acid, methyl mercaptan, methyl mercury, methylmercury, methyl methacrylate, methylmethaqualone, methyl methyacrylate, methylmorphine, methylnaltrexone, methylome, methyl orange, methylosome, methylotroph, methylotrophic, methylparaben, methyl para-hydroxybenzoate, methyl paraoxon, methyl parathion, methylphenethylamine, methylphenobarbital, methylpolysiloxane, methylpotassium, methylprogesterone, methylpurine, methylpyridine, methyl radical, methyl rubber, methyl salicylate, methylscopolamine, methylserotonin, methylsiloxane, methylsodium, methylsulfate, methylsulfenamide, methylsulfonylmethane, methylsulphonylmethane, methyl t-butyl ether, methyl tert-butyl ether, methyl tertiary butyl ether, methyltetrahydrofolate, methylthioninium, methylthiouracil, methylthiourea, methyltransferase, methyltyramine, methyltyrosine, methylumbelliferone, methylurethane, methyl vinyl ketone, methyl violet, methylxanthine, meticillin, metitepine, metrifonate, metronidazole, metsulfuron-methyl, mexazolam, mexiletine, miloxacin, milrinone, mirtazapine, misoprostol, monomethyl, monomethylhydrazine, nifurtimox, nimetazepam, nitromethyl, N-methylleucine, N-methylnipecotic acid, N-methylphenylalanine, N-methylvaline, norgestomet, octamethyl, oxymetazoline, parathion methyl, pentamethyl, permethyl, phenylmethyl, pirimiphos-methyl, polymethyl, promegestone, sarmazenil, sumarotene, taurinomethyl, temazepam, tetramethyl, tetramethylcyclopropane, tetramethylethylenediamine, timoprazole, tolclofos-methyl, triarylmethyl, trichloromethyl, trihydroxymethylanthraquinone, trimethyl, trimethylalkane, trimethylhydroquinone, trimethylphenylammonium, trimethylstannane, zomebazam