- 行业: Printing & publishing
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McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
The rule that the most stable form of the bonds of a polynuclear compound is that arrangement which has the maximum number of rings in the benzenoid form, that is, three double bonds in each ring.
Industry:Chemistry
A synthesis of primary amines by the hydrolysis of Nalkylphthalimides; the latter are obtained from potassium phthalimide and alkyl halides.
Industry:Chemistry
1. Reaction of a phenol or phenol ester, and hydrogen chloride or hydrogen cyanide, in the presence of a metallic chloride such as aluminum chloride to form, after hydrolysis, an aldehyde. 2. Reaction of an aqueous ethanolic solution of diazonium salts with precipitated copper powder or other reducing agent to form diaryl compounds.
Industry:Chemistry
(CH<sub>3</sub>)<sub>2</sub>C(C<sub>6</sub>H<sub>5</sub>OH)<sub>2</sub> Brown crystals that are insoluble in water; used in the production of phenolic and epoxy resins.
Industry:Chemistry
The rule that glutaric and succinic acids yield cyclic anhydrides on pyrolysis, while adipic and pimelic acids yield cyclic ketones; there are certain exceptions.
Industry:Chemistry
A compound with a melting point of 235–236_C; soluble in water; used as a fungicide for rice crops.
Industry:Chemistry
A laboratory method for preparing alcohols by reduction of esters utilizing sodium dissolved in alcohol.
Industry:Chemistry
CH<sub>3</sub>CONHBr Needlelike crystals with a melting point of 102–105_C; soluble in warm water and cold ether; used as a brominating agent and in the oxidation of primary and secondary alcohols.
Industry:Chemistry
An intermediate stage in a thermosetting resin reaction in which the plastic softens but does not fuse when heated, and swells but does not dissolve in contact with certain liquids.
Industry:Chemistry
A method of preparation of polynuclear primary aromatic amines; for example, _-naphthylamine is obtained by heating _-naphthol in an autoclave with a solution of ammonia and ammonium sulfite.
Industry:Chemistry
