Dimethyl zinc

Chemical Designations - Synonyms Zinc Dimethyl Zinc Methyl Methyl Zinc Chemical Formula (CH3)iZn. 

The synthesis of 2,4,6-trisubstituted-l,3,5-triazines has been reviewed <06MI81>. Reaction of an activated form of carboxylic acids 20 with zinc dimethyl imidodicarbonimidate 21 led to 4,6-dimethoxy-l,3,5-triazines 22 in high yields <06S2845>. 

Mercury dimethyl, unlike zinc dimethyl, is fairly stable at ordinary temperatures, and is not attacked by air or water. 

Such reaction is a synthetic route to prepare many organometallic compounds. Thus, reaction with metallic zinc yields zinc dimethyl ... 

Zinc Dihexyldithiophosphate Zinc Dihexylphosphorodithioate Zinc Dimethyl Zinc Ethyl... 

Zinc Dimethyl. Zn(CH3)2, C2H6Zn mw 95.45 mobile pyrophoric liq, stable in a sealed tube under C02 mp —40° bp 46° d 1.386g/cc at 10.5/4°. Sol in eth and misc with hydrocarbons. Prepn is by interaction of Zn with methyl iodide. It bums with a pale blue flame, emitting a garliclike odor. It has a heat of combstn of 5050 15cal/g(Refs 2,p 1245 3,p 179 4,p434 (No 3254))... 

All the chlorosilanes similarly may be used as intermediates for the preparation of many interesting substances. They may be methylated with zinc dimethyl,14 for example, to form monomethyl- and dimethylsilanes, CH3SiIl3 and (CH3)2SiH2. Stock and Somieski in this way succeeded in obtaining 36 cc. of the gaseous dimethylsilane, of which they hydrolyzed 5.57 cc. in a few drops of aqueous alkali in order to measure the evolved hydrogen ... 

Substitution by Alkyls of Zinc, Mercury, and Aluminum. The reaction of alkyls of zinc with ethyl silicate or silicon tetrachloride was the first to be used for the preparation of organosilicon compounds. During the period 1863 to 1880 Friedel and Crafts and later Ladenburg employed zinc dimethyl and zinc diethyl to prepare the corresponding alkyls of silicon and many of the intermediate substitution products as well. The reactions were conducted in sealed tubes heated to about 160° and were of a straightforward metathetical type ... 

Metal alkyl. A compound of a metal with directly linked aliphatic or aromatic hydrocarbon radicals, as in zinc dimethyl, Zn(CHs)2, or mercury diphenyl, Hg(C6H5)2. A normal alkyl has sufficient organic groups to satisfy the normal valence of the metal and therefore contains no halogen or other substituent in place of organic radicals. 

Trimethylarsine, (CH3)3As.— This compound was first mentioned by Cahours and Hofmann, who stated that it was obtained by the action of potassium hydroxide on the double salt derived from arsenic trichloride and zinc dimethyl. In 1859 Cahours isolated this ansine by distilling tetramethylarsonium iodide or its double salts with potas.sium hydroxide, after having obtained only small yields by treating sodium arsenide with methyl iodide. Auger in 1904 stated that the brown polymer formed when arsenomethane is treated with a trace of hydrogen chloride yields trimethylarsine when distilled in an atmosphere of... 

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