Amination acetylenic

Primary aliphatic or aromatic amines RNH2 are converted into carbamates RNHCC Et on treatment with carbon monoxide and di-t-butyl peroxide in the presence of palladium(II) chloride and copper(II) chloride357. Carbamic esters 304 and 305 are also obtained from aliphatic amines and ortho carbonates (R30)4C358. Vinyl carbamates R12NC02CH=CHR2 are produced from secondary aliphatic amines, acetylenes R2C=CH (R2 = Bu or Ph) and carbon dioxide in the presence of ruthenium(III) chloride359. 

Carboxylic Acids Aromatic Amines Acetylenic Compounds... 

If you look back on the arylations and alkenylations that have so far been discussed in this section, you will find out that the acetylene itself was never used as the nucleophile, but always a higher alkyne. That is no coincidence, since in the presence of an amine, acetylene and Cul form the poorly soluble Cu2C2 most of which precipitates. If at all, the very small portion of this species that remains in solution would couple with the arylating and alkenylating agents on both C atoms. This would at best result in the formation of the respective bis-coupling product of acetylene. 

The synergistic blends consist of amines, acetylenic alcohols, surfactants and oils to make a readily dispersed product. 

Dimethyl carbonate can be used to alkylate phenols, aromatic amines, acetylenes, and active methylene compounds. What other alkylations might be carried out with it that are now performed with iodomethane or dimethyl sulfate ... 

Ancor . [Air Prods.] Amine/acetylenic alcohol corrosion inhibitor for ferrous and ferric environments steel pickling electroplating brightener. 

Forms explosive mixture with air (flash point —35°F/—37°C), or with oxygen. Reacts with water, steam. Contact with water may lead to a mnaway reaction. Able to form unstable peroxides acids, caustic materials, metal halides can cause hazardous polymerization. Reacts with acids, ammonia, amines, acetylene-forming metals, clay-based absorbents. Incompatible with anhydrous metal chlorides, caustics, ammonium hydroxide, salts. Attacks some plastics, rubber, and coatings. Flow or agitation of substance may generate electrostatic charges due to low conductivity, and may cause ignition of its vapors. 

Amidotransferase, 414-427 Amine, acetylenic, 161 Amine oxidases, 160 Amino acid... 

Inhibitor A Proprietary blend of aliphatic and cycloaliphatic amines, acetylenic alcohols, and snr-factants. Concentrations used were both 1% and 2% by volume. Intensifier, when used, was added at the same concentrations. 

---