Amines ethylene

Poly(ethylene amine) (PEI), 20 414 Poly(ethylene amines), dispersants,... 

Poly(diallyldiinelhylarnino-nium chloride) (PDDA) or polyethylene amine (PEI) Linear poly(ethylene amine) Iron hexacyanoferrate (Prussian Blue) [29, 63]... 

The ability of allylzinc bromide to add to terminal alkynes was first observed with acetylenic amines as substrates. Thus, the propargylic amine 290 underwent addition of allylzinc bromide in refluxing THF and afforded after hydrolysis the allylic amine 291. This reaction occurred much more easily compared to the case of ethylenic amines (see Section III.A) and the regioselectivity was also noteworthy as a branched product was obtained predominantly82,105. It was suggested that metallation of the terminal alkyne was responsible for the observed regioselectivity. Indeed, the formation of an alkenyl... 

Cyanuric chloride was used by Okumura et al. (2) to crosslink the a-cyclodex-trin portion of linear polyethylene glycol polyrotaxane containing an ethylene amine termini. 

Kirk Othmer 5(1950), 898-905(Ethylene diamine other ethylene amines)... 

Ethyleneamine Processes. Present industrial processes are based on ethylene and ammonia. The sixly-year-old ediylcne dichloride (EDC) proeess is still the mosl widely practiced industrial route for producing ethylene amines. 

Ethylene Amines." Product Bulletin of the Dow Chemical Company. 

The most common functional templates are those of simple amino compounds 4, amino acids 5, and dipeptides 8 (Scheme 3). The simplest amino templates, the tris(ethylene amine) ammonia types 6, 7, and 9 first used in organic dendrimers, have only just begun to be applied in forming peptide dendrimers. Constrained and usual amino acids and heterocyclic compounds such as porphyrin 13, have also been reported.1691... 

Fig. 9-1. Effect of crystallinity and hydrogen bonding on the acetylation of cotton fibers (Demint and Hoffpauir, 1957). (a) Original fibers, (b) Crystallinity has been destroyed by ethylene amine treatment. Subsequent drying has resulted in the formation of hydrogen bonds, (c) Crystallinity has been destroyed as above but because drying has been omitted no hydrogen bonds have been formed.

Platinum complexes incorporating an optically active amine have been employed for resolution of racemic mixtures of optically active olefins by reaction of the olefin with dichloro-platinum(II). The differing solubility of the diastereoisomers permits separation by fractional crystallization and the olefin can be recovered by reaction of the complex with aqueous alkali cyanide. Using either (-f)-l-phenyl-2-aminopropane (Dexedrine) or (-f)- or (—)-a-phenyl-ethylamine. Cope and co-workers have resolved the optical isomers of trans double bond coordinated and, with (—)-phenylethyl-amine)dichloroplatinum(II), a bridged complex with each double bond coordinated to a different platinum atom. 

Many sulfa drugs such as sulfanilamide, sulfathio-zole, and sulfathalidine can be titrated in ethylene-amine with tetrabutylammonium hydroxide. The ability of dimethylformamide to dissolve salts, polymers, and many organic compounds accounts for its wide use as a titration solvent. Inert solvents such as acetone can be used for titration of acids, acetonitrile for both acids and bases, and ethyl acetate for amines. A suitable non-aqueous medium such as methyl... 

Molar ratio Ethylene/amine/RhCb Appreciable side reactions noted. 

D-Berine methyl ester is converted into the IJ-triphenylmethyl derivative which, when heated in the presence of methane sulphonyl chloride, yielded the substituted ethylene-amine (2). Reaction of (2) with hydroxyl-amine and sodium methoxide gives the corresponding hydroxamic acid (3) This product is converted, by the action of hydrochloric acid, into D-a amiso-3-chloro-H-hydroxypropionamide (k), which undergoes cyclization to D-cycloserine (5) when treated with a strongly basic ion exchange resin. 

NaBH4-CoCl2 in MeOH also reduces a,p-unsaturated nitriles without affecting the double bond, but one obtains an a,p-ethylenic amine [G02] (Figure 4.12). However, if the double bond is conjugated either to another double bond or to an aldehyde such as 4.24, the totally reduced product is obtained [G02] (Figure 4.12). 

AEROTEX GLYOXAL 40 (107-22-2) Flammable solid, but normally sold as an inhibited 40% solution. A highly reactive reducing agent. Violent reaction with water causes polymerization. Temperatures above boiling point of 122°F/50°C can cause polymerization. Reacts, possibly violently, with strong acids, caustics, ammonia, amines, amides, aldehydes, chlorosulfonic acid, ethylene amine, hydroxyl-containing materials. Corrosive to metals aluminum, copper, tin, steel, zinc. 

The largest single use for sodium hydroxide is in the production of organic compounds from which polymers are made, such as propylene oxide and the ethylene amines, and of the polymers themselves, including the polycarbonates and epoxy resins. About a third of all the sodium hydroxide produced in the United States goes to this application. Another important use of sodium hydroxide is in the pulp and paper industry, where it is used to digest (break down) the raw materials from which pulp and paper are made. About 13 percent of all the sodium hydroxide made in the... 

PROPERTTES OF SPECIAL INTEREST A Special highly branched poly (ethylene amine). 

Figure 1.9 Temperature dependence of the conductivity of some examples of polymer electrolytes (a) poly(ethylene oxide), (-CH2-CH2-0-) -LiC104 (12 1), (b) poly(bis-methoxy-ethoxy-elhoxy) phosp-hazene [(CH30-C2H40-C2H40)2PN-] -LiCF3SO3 (4 1), (c) poly(propylene oxide) [-CH2(CH3)-CH2-0-] -LiCp3S03 (9 1), and (d) poly(ethylene-amine (-CH2-CH2-NH-) -LiCF3S03 (9 1). (Reproduced with permission from Ref. [29], 1994, Kluwer Academic Publishers.)...

Asthma due to exposure to ethylene amines in manufacture has been reported by Dernehl (1951), and after exposure to aliphatic polyamine or epoxy resin curing agents (Dernehl 1963). Phthalic anhydride, often used in hot curing systems, is a recognised irritant of the respiratory tract and asthma has been reported (American Industrial Hygiene Association Journal 1967 Malten and Zielhuis 1964 Petit et al. 1961). 

Demehl CU (1951) Clinical experiences with exposures to ethylene amines. Ind Med Surg 20 541... 

---