Isopropyl methylamine

Isoprene [78-79-5] (2-methyl-1,3-butadiene) is a colorless, volatile Hquid that is soluble in most hydrocarbons but is practically insoluble in water. Isoprene forms binary azeotropes with water, methanol, methylamine, acetonitrile, methyl formate, bromoethane, ethyl alcohol, methyl sulfide, acetone, propylene oxide, ethyl formate, isopropyl nitrate, methyla1 (dimethoxymethane), ethyl ether, and / -pentane. Ternary azeotropes form with water—acetone, water—acetonitrile, and methyl formate—ethyl bromide (8). Typical properties of isoprene are Hsted in Table 1. 

Aminolysis of activated forms by methylamine provides a convenient derivative for characterizing activated forms. Boc-valine methylamide (Figure 7.37) was the derivative made to confirm the structure of the 2-tert-butoxy-4-isopropyl-5(4//)-oxazolone that had been prepared for the first time (see Section 1.18). However, for activated forms that might undergo enantiomerization or epimerization during aminolysis, hydrazinolysis is the reagent of choice for their derivatization and for establishing the isomeric nature of a substance. Reaction with hydrazine produces... 

A somewhat similar oxidation of terminal alkenes to methyl ketone and alcohol by 02 in the presence of Co(salMDPT) [salMDPT = bis(salicylideneiminopropyl)methylamine] and in ethanol solvent has recently been reported by Drago and coworkers (equation 244).560 Only terminal alkenes were found to be reactive with this catalytic system. The reaction is alcohol dependent and occurs in ethanol and methanol but not in t-butyl or isopropyl alcohols. The alcohol is concomitantly oxidized during the reaction, and may act as a coreducing agent and/or favor the formation of cobalt hydride. This oxidation might occur according to the mechanism of equation (243). 

A solution of 19.4 g N-2,4-dimethylphenyl-N -methylformamidine and 0.3 g p-toluenesulphonic acid in 195 ml dry xylene was refluxed under anhydrous conditions for 48 h, causing the evolution of methylamine. The xylene was distilled off under reduced pressure to give l,5-di-(2,4-dimethylphenyl)-3-methyl-1,3,5-triaza-penta-l,4-diene, melting point 88°-89°C (crystallized twice from isopropyl). 

Method. To 200 p, of the plasma sample in a 10-ml conical test-tube add 40 p,l of 2M tris(hydroxymethyl)methylamine and 4ml of a mixture of chloroform and isopropyl alcohol (3 1) mix for 30 seconds, and centrifuge for 5 minutes. Carefully transfer the solvent layer to a second test-tube containing 4 ml of 0.05M sulphuric acid, mix, cenhifuge for 5 minutes, and carefully hansfer about 2ml of die acid layer to a 1-cm quartz fluorescence cuvette. Excite the extract at 350 nm and measure the intensity of emission at 450 nm. The standard plasma solutions are processed similarly at the same time. 

This reaction is of little value for the preparation of aliphatic alcohols. Methyl alcohol cannot be obtained from methylamine and nitrous acid. R-Propylamine gives a mixture of -propyl alcohol, isopropyl alcohol, and propene. ... 

Methyl Iso butyl Ketone Methyl Isopropyl Ketone Methyl Methacrylate Methyl Salicylate Methyl Sulfuric Acid Methyl Trlchlorosllane Methylamine Methylene Bromide aquaous sekution or liquid 23 82 es M ea 23 79 7 2 2 B 5 8. .t. B M m. axp. temp. Is max, recom. flM rscpntmaiMtKf for ua tip. 1. max. iacom. u Alocham Forallon Alochem Kynar u H U H M... 

To do the reaction, 50 grams of the bromo compound is poured into a beaker, and 200 ml of concentrated ammonium hydroxide (28% NH3) or 40% methylamine is added. Next, isopropyl alcohol is added with stirring until a nice smooth solution is formed. It is not good to add too much alcohol because a more dilute solution reacts slower. Now the mixture is poured into a pipe "bomb." This pipe should be made of stainless steel, and have fine threads on both ends. Stainless steel is preferred because the HBr given off in the reaction will rust regular steel. Both ends of the pipe are securely tightened down. The bottom may even be welded into place. Then the pipe is placed into cooking oil heated to around ISOoC. This temperature is maintained for about 3 hours or so, then it is allowed to cool. Once the pipe is merely warm, it is cooled down some more in ice, and the cap unscrewed. 

SMILES (Simplified Molecular Input Line Entry System) was invented by Weininger5 to facilitate the representation and manipulation of molecular structures using computers. It uses standard atomic symbols to represent atoms and the symbols - for single bond, = for double bond, and for triple bond. Hydrogen atoms can be represented explicitly but are almost always represented implicitly using normal conventions of valence bond theory. Single bonds need not be explicitly written. For example, propane is C-C-C or simply CCC. Methylamine is CN, and C N is hydrogen cyanide. Propene is C=CC. For more complex structures with branched bonds, parentheses are used. For example, CC(C)0 is isopropyl alcohol, whereas CCCO is propanol. 

CAS 1446-61-3 EINECS/ELINCS 215-899-7 Synonyms 1,4A-Dimethyl-7-isopropyl-1,2,3,4,4A,9,10,1 OA-octahydro-1 -phenanthrene methylamine Classification Aromatic amine Empir ical C Hs,N... 

N,N-Diethyl-m-toluidine Dimethyl adipate Dimethylaminopropylamine Dimethyl malonate 1,3-Dinitrobenzene 1,8-Dinitronaphthalene N,N -Diphenyl-p-phenylenediamine Emodin 3-Ethylamino-4-methylphenol 3-Ethylaminophenol Ethyl benzoylacetate Ethylbenzylaniline Ethyl chloride N-Ethyl-N-hydroxyethyl-m-toluidine Ethyl morpholine Hexachlorocyclopentadiene Hexamethyleneimine 1-Hexene Hydrazobenzene Hydroquinone Imidazole Isopropylamine Isopropyl bromide 2-Mercaptoethanol 2-Methoxy-5-nitroaniline Methylamine Methyl anthranilate Methyl benzoate 2-Methyl benzoxazole 4,4 -Methylenedianiline... 

Dimethyl acetamide Ethylene dichloride Isopropyl ether Mesityl oxide Methylamine Methylamine, aqueous solutions Phenoxyethanol Potassium hydroxide Propylene glycol phenyl ether 1,1,2,2-Tetrachloroethane... 

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