Zinc diethyl

Industrially, chlorine is obtained as a by-product in the electrolytic conversion of salt to sodium hydroxide. Hazardous reactions have occuned between chlorine and a variety of chemicals including acetylene, alcohols, aluminium, ammonia, benzene, carbon disulphide, diethyl ether, diethyl zinc, fluorine, hydrocarbons, hydrogen, ferric chloride, metal hydrides, non-metals such as boron and phosphorus, rubber, and steel. 

Diethyl aniline, 54 Diethylcarbaniazine citrate, 54 Diethyl carbamyl chloride, 54 Diethyl chlorophosphate, 54 Diethylene triamine, 54 Diethyl ether, 54 Di(2-ethylhexyl) phthalate, 54 Diethyl ketone, 54 Diethyl-p-phenylenediamine, 54 Diethyl phthalate, 54 Diethylstilbestrol, 55 Diethyl sulfate, 55 Diethyl zinc, 55 Difluoromethane chloride, 55 Digitoxin, 55 Diglycidyl ether, 55 Digoxin, 55 Diisobutyl ketone, 55 Diisopropylamine, 55 Diisopropyl ether, 55 DIKAMIN , 2,4-D, 55 DIKONIRT , 2,4-D, 55 Dimefox, 55 Dimethoate, 55 3,3 -Dimethoxybenzidine, 55 n,n-Dimethylacetamide, 56 Dimethylamine, 56 4-Dimethylaminoazobenzene, 56 Dimethylaminoethanol, 56 n,n-Dimethyl aniline, 56 7,12-Dimethylbenz[a]anthracene, 56 3,3 -Dimethylbenzidine, 56... 

Thiophene is also metal ated by a benzene-soluble ethyl sodium-diethyl zinc complex. Upon carbonation, 65% of 2-thiophenecar-boxylic acid was obtained. ... 

One member of this class of compds, known to be used as an incendiary agent, is trie thy b aluminum [A1(C2H5)3]. Similar agents, such as trimethylaluminum or trimethylmagnesium, might also have possible military applications as incendiaries. Diethyl zinc has been employed as an igniter (Ref 3)... 

Reaction of an alkyl (usually trimethyl) of Group-IIIb element (Al, Ga, In) with a hydride of a Group-Vb element (P, As, Sb) at 600-800°C and 1 atm. [4i][42] p. doping obtained from addition of diethyl zinc or bis(cyclopentadienyl) magnesium. 

The molar ratio of the III compound to the V compound is typically l/lO.t ] To obtain the desired semiconductor properties, dopants are added such as zinc (from diethyl zinc) or magnesium (from bis(cyclopentadienyl) magnesium) for p doping, and silicon (from silane) or selenium (from hydrogen selenide) for n doping. 

Kragl and Dreisbach (1996) have carried out the enantioselective addition of diethyl zinc to benzaldehyde in a continuous asymmetric membrane reactor using a homogeneous soluble catalyst, described in their paper. Here a,a-diphenyl-L-proline was used as a chiral ligand, coupled to a copolymer made from 2-hydroxy ethyl methacrylate and octadecyl methacrylate, which had a sufficiently high molecular weight to allow separation by ultra-filtration (U/F). The solvent-stable polyaramide U/F Hoechst Nadir UF PA20 retained more than 99.8% of the catalyst. The ee was 80 %, compared to 98 % for a noncoupled catalyst. 

The monocation tris(diethylether) ethylzinc is formed from diethyl zinc as a tetrakis(penta-fluorophenyl)borate salt.85 Longer-chain linear and cyclic ether complexes (2) of zinc alkyls have also been observed. The reaction between zinc dialkyls and primary amines gives a number of structurally diverse products dependent on the reaction conditions and the amine.86 The... 

The latter effect has been demonstrated by Meijer et al., who attached chiral aminoalcohols to the peripheral NH2-groups of polypropylene imine) dendrimers of different generations [100]. In the enantioselective addition of diethyl-zinc to benzaldehyde (mediated by these aminoalcohol appendages) both the yields and the enantioselectivities decreased with increasing size of the dendrimer (Fig. 28). The catalyst obtained from the 5th-generation dendrimer carrying 64 aminoalcohol groups at its periphery showed almost no preference for one enantiomer over the other. This behavior coincides with the absence of measurable optical rotation as mentioned in Sect. 3 above. The loss of activity and selectivity was ascribed to multiple interactions on the surface which were... 

Bands of diethyl mercury0 6 (cm-1) Bands of diethyl zinc (cm-1) Assignment0 Intermediate bands6 (cm-1)... 

DEZ [Diethyl zinc] A process for preserving books and documents by treatment with diethyl zinc vapor, which neutralizes ary residual acidity from the papermaking process. The articles are placed in a low-pressure chamber and suffused by diethyl zinc vapor. This vapor reacts with the moisture in the paper to yield zinc oxide, which neutralizes the acid. The process was developed by Texas Alkyls (a joint company of Akzo and Hercules) and the U S. Library of Congress. A pilot plant was set up in 1988, capable of treating batches of 300 books, and plans to build two larger plants were announced in 1989. 

The quaternary ammonium salt 48 derived from (+)-ephedrine was utilized for the enantioselective addition of diethyl zinc to aldehydes.1421 The chiral ammonium fluorides 7 (R=4-CF3 or 2,4-(CF3)2, X=F) were also useful for the enantioselective trifluoro-methylation of aldehydes and ketones with moderate enantioselectivity,1431 shown in Scheme 17... 

J. Hu and R.G. Gordon, Atmospheric pressure chemical vapor deposition of gallium doped zinc oxide thin films from diethyl zinc, water, and triethyl gallium, J. Appl. Phys., 72 5381-5392, 1992. 

Diethyl zinc, spectrum of, 22 28 Differential heat of adsorption, 38 154, 156 see also Carbon monoxide Hydrogen Oxygen... 

The reaction is usually performed in water, but sometimes without solvent or in EtOH, THF, and benzene. Organometallic precursors like diethyl zinc have also been used (in THF at —70 °C). The nature of the precursors does not seem to have any marked influence on the polymer properties of the metal phosphinates. 

Acyclic Enones as Substrates Compared to cyclic enones, acyclic enones are generally more challenging substrates for the copper-catalyzed asymmetric 1,4-addition reactions. Several ligands have been reported that can achieve high ee when p-aryl acyclic enones are used as substrates in the 1,4-addition of diethyl-zinc (Figure 3.5). ° ... 

Examples, like the application of enantiopure ioiuc hquids in the copper catalyzed enantioselective 1,4-addition of diethyl zinc to enones giving up to 76% ee, will not be presented [178], since here the chiral ionic liquid, CIL, acts as a ligand for a metal catalyzed reaction. 

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