Метиламин — Википедия

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Метиламин — Википедия

Methylamine is an organic compound with a formula of CH 3 NH 2. This colorless gas is a derivative of ammonia , but with one hydrogen atom being replaced by a methyl group. It is the simplest primary amine. It is sold as a solution in methanol , ethanol , tetrahydrofuran , or water , or as the anhydrous gas in pressurized metal containers. Industrially, methylamine is transported in its anhydrous form in pressurized railcars and tank trailers. It has a strong odor similar to fish. Methylamine is used as a building block for the synthesis of many other commercially available compounds. Methylamine is prepared commercially by the reaction of ammonia with methanol in the presence of an aluminosilicate catalyst. Dimethylamine and trimethylamine are co-produced; the reaction kinetics and reactant ratios determine the ratio of the three products. The product most favored by the reaction kinetics is trimethylamine. In this way, an estimated , tons were produced in Methylamine was first prepared in by Charles-Adolphe Wurtz via the hydrolysis of methyl isocyanate and related compounds. In the laboratory, methylamine hydrochloride is readily prepared by various other methods. One method entails treating formaldehyde with ammonium chloride. The colorless hydrochloride salt can be converted to an amine by the addition of a strong base, such as sodium hydroxide NaOH :. Another method entails reducing nitromethane with zinc and hydrochloric acid. Another method of methylamine production is spontaneous decarboxylation of glycine with a strong base in water. Methylamine is a good nucleophile as it is an unhindered amine. Its use in organic chemistry is pervasive. Some reactions involving simple reagents include: with phosgene to methyl isocyanate , with carbon disulfide and sodium hydroxide to the sodium methyldithiocarbamate, with chloroform and base to methyl isocyanide and with ethylene oxide to methylethanolamines. Liquid methylamine has solvent properties analogous to those of liquid ammonia. Representative commercially significant chemicals produced from methylamine include the pharmaceuticals ephedrine and theophylline , the pesticides carbofuran , carbaryl , and metham sodium , and the solvents N -methylformamide and N -methylpyrrolidone. The preparation of some surfactants and photographic developers require methylamine as a building block. Methylamine arises as a result of putrefaction and is a substrate for methanogenesis. Additionally, methylamine is produced during PADI4 -dependent arginine demethylation. The LD 50 mouse, s. In the United States, methylamine is controlled as a List 1 precursor chemical by the Drug Enforcement Administration \\\\\\\\\\\\[16\\\\\\\\\\\\] due to its use in the illicit production of methamphetamine. In the TV series Breaking Bad , Walter White manufactures methamphetamine through the reductive amination of phenylacetone with methylamine. The methylamine was stolen from a warehouse in the season one episode ' A No-Rough-Stuff-Type Deal ' and from a moving train in the season five episode ' Dead Freight. From Wikipedia, the free encyclopedia. Methanamine \\\\\\\\\\\\[1\\\\\\\\\\\\]. Aminomethane Monomethylamine. CAS Number. Interactive image. Beilstein Reference. Gmelin Reference. PubChem CID. Chemical formula. Solubility in water. Dipole moment. GHS hazard statements. GHS precautionary statements. Autoignition temperature. LD 50 median dose. LC 50 median concentration. PEL Permissible. REL Recommended. IDLH Immediate danger. Cambridge: The Royal Society of Chemistry. Catalysis Today. Practical Organic Chemistry, 4th Ed. London: Longman. Practical Organic Chemistry 2nd Ed. London: Macmillan and Co. Organic Syntheses. CS1 maint: multiple names: authors list link ; Collective Volume , 1 , p. Laboratory Methods of Organic Chemistry. Journal of the American Chemical Society. Cellular and Molecular Life Sciences. S Journal of Forensic Sciences. Molecules detected in outer space. Aluminium monochloride Aluminium monofluoride Aluminium monoxide Argonium Carbon monophosphide Carbon monosulfide Carbon monoxide Carborundum Cyanogen radical Diatomic carbon Fluoromethylidynium Helium hydride ion Hydrogen chloride Hydrogen fluoride Hydrogen molecular Hydroxyl radical Iron II oxide Magnesium monohydride cation Methylidyne radical Nitric oxide Nitrogen molecular Nitrogen monohydride Nitrogen sulfide Oxygen molecular Phosphorus monoxide Phosphorus mononitride Potassium chloride Silicon carbide Silicon mononitride Silicon monoxide Silicon monosulfide Sodium chloride Sodium iodide Sulfur monohydride Sulfur monoxide Titanium oxide. Category:Astrochemistry Astronomy portal Chemistry portal. Authority control GND : Categories : Alkylamines introductions. Namespaces Article Talk. Views Read Edit View history. In other projects Wikimedia Commons. By using this site, you agree to the Terms of Use and Privacy Policy. Other names Aminomethane Monomethylamine. EC Number. Basicity p K b. GHS Signal word. H , H , H , H , H Explosive limits. Lethal dose or concentration LD, LC :. Diatomic Aluminium monochloride Aluminium monofluoride Aluminium monoxide Argonium Carbon monophosphide Carbon monosulfide Carbon monoxide Carborundum Cyanogen radical Diatomic carbon Fluoromethylidynium Helium hydride ion Hydrogen chloride Hydrogen fluoride Hydrogen molecular Hydroxyl radical Iron II oxide Magnesium monohydride cation Methylidyne radical Nitric oxide Nitrogen molecular Nitrogen monohydride Nitrogen sulfide Oxygen molecular Phosphorus monoxide Phosphorus mononitride Potassium chloride Silicon carbide Silicon mononitride Silicon monoxide Silicon monosulfide Sodium chloride Sodium iodide Sulfur monohydride Sulfur monoxide Titanium oxide. GND :

Метиламин — Википедия

Что такое метиламин?

Methylamine is an organic compound with a formula of CH 3 NH 2. This colorless gas is a derivative of ammonia , but with one hydrogen atom being replaced by a methyl group. It is the simplest primary amine. It is sold as a solution in methanol , ethanol , tetrahydrofuran , or water , or as the anhydrous gas in pressurized metal containers. Industrially, methylamine is transported in its anhydrous form in pressurized railcars and tank trailers. It has a strong odor similar to fish. Methylamine is used as a building block for the synthesis of many other commercially available compounds. Methylamine is prepared commercially by the reaction of ammonia with methanol in the presence of an aluminosilicate catalyst. Dimethylamine and trimethylamine are co-produced; the reaction kinetics and reactant ratios determine the ratio of the three products. The product most favored by the reaction kinetics is trimethylamine. In this way, an estimated , tons were produced in Methylamine was first prepared in by Charles-Adolphe Wurtz via the hydrolysis of methyl isocyanate and related compounds. In the laboratory, methylamine hydrochloride is readily prepared by various other methods. One method entails treating formaldehyde with ammonium chloride. The colorless hydrochloride salt can be converted to an amine by the addition of a strong base, such as sodium hydroxide NaOH :. Another method entails reducing nitromethane with zinc and hydrochloric acid. Another method of methylamine production is spontaneous decarboxylation of glycine with a strong base in water. Methylamine is a good nucleophile as it is an unhindered amine. Its use in organic chemistry is pervasive. Some reactions involving simple reagents include: with phosgene to methyl isocyanate , with carbon disulfide and sodium hydroxide to the sodium methyldithiocarbamate, with chloroform and base to methyl isocyanide and with ethylene oxide to methylethanolamines. Liquid methylamine has solvent properties analogous to those of liquid ammonia. Representative commercially significant chemicals produced from methylamine include the pharmaceuticals ephedrine and theophylline , the pesticides carbofuran , carbaryl , and metham sodium , and the solvents N -methylformamide and N -methylpyrrolidone. The preparation of some surfactants and photographic developers require methylamine as a building block. Methylamine arises as a result of putrefaction and is a substrate for methanogenesis. Additionally, methylamine is produced during PADI4 -dependent arginine demethylation. The LD 50 mouse, s. In the United States, methylamine is controlled as a List 1 precursor chemical by the Drug Enforcement Administration \\\\\\\\\\\\\\[16\\\\\\\\\\\\\\] due to its use in the illicit production of methamphetamine. In the TV series Breaking Bad , Walter White manufactures methamphetamine through the reductive amination of phenylacetone with methylamine. The methylamine was stolen from a warehouse in the season one episode ' A No-Rough-Stuff-Type Deal ' and from a moving train in the season five episode ' Dead Freight. From Wikipedia, the free encyclopedia. Methanamine \\\\\\\\\\\\\\[1\\\\\\\\\\\\\\]. Aminomethane Monomethylamine. CAS Number. Interactive image. Beilstein Reference. Gmelin Reference. PubChem CID. Chemical formula. Solubility in water. Dipole moment. GHS hazard statements. GHS precautionary statements. Autoignition temperature. LD 50 median dose. LC 50 median concentration. PEL Permissible. REL Recommended. IDLH Immediate danger. Cambridge: The Royal Society of Chemistry. Catalysis Today. Practical Organic Chemistry, 4th Ed. London: Longman. Practical Organic Chemistry 2nd Ed. London: Macmillan and Co. Organic Syntheses. CS1 maint: multiple names: authors list link ; Collective Volume , 1 , p. Laboratory Methods of Organic Chemistry. Journal of the American Chemical Society. Cellular and Molecular Life Sciences. S Journal of Forensic Sciences. Molecules detected in outer space. Aluminium monochloride Aluminium monofluoride Aluminium monoxide Argonium Carbon monophosphide Carbon monosulfide Carbon monoxide Carborundum Cyanogen radical Diatomic carbon Fluoromethylidynium Helium hydride ion Hydrogen chloride Hydrogen fluoride Hydrogen molecular Hydroxyl radical Iron II oxide Magnesium monohydride cation Methylidyne radical Nitric oxide Nitrogen molecular Nitrogen monohydride Nitrogen sulfide Oxygen molecular Phosphorus monoxide Phosphorus mononitride Potassium chloride Silicon carbide Silicon mononitride Silicon monoxide Silicon monosulfide Sodium chloride Sodium iodide Sulfur monohydride Sulfur monoxide Titanium oxide. Category:Astrochemistry Astronomy portal Chemistry portal. Authority control GND : Categories : Alkylamines introductions. Namespaces Article Talk. Views Read Edit View history. In other projects Wikimedia Commons. By using this site, you agree to the Terms of Use and Privacy Policy. Other names Aminomethane Monomethylamine. EC Number. Basicity p K b. GHS Signal word. H , H , H , H , H Explosive limits. Lethal dose or concentration LD, LC :. Diatomic Aluminium monochloride Aluminium monofluoride Aluminium monoxide Argonium Carbon monophosphide Carbon monosulfide Carbon monoxide Carborundum Cyanogen radical Diatomic carbon Fluoromethylidynium Helium hydride ion Hydrogen chloride Hydrogen fluoride Hydrogen molecular Hydroxyl radical Iron II oxide Magnesium monohydride cation Methylidyne radical Nitric oxide Nitrogen molecular Nitrogen monohydride Nitrogen sulfide Oxygen molecular Phosphorus monoxide Phosphorus mononitride Potassium chloride Silicon carbide Silicon mononitride Silicon monoxide Silicon monosulfide Sodium chloride Sodium iodide Sulfur monohydride Sulfur monoxide Titanium oxide. GND :

Methylamine

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Метиламин — Википедия

Что такое метиламин?

Methylamine

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