As reagent for detecting double bonds

Tetranitromethane as reagent for detecting double bonds, 21, 107 Tetraphenylcyclopentadienone, 23, 92, 93... 

TETRAMETHYL-d-GLUCOSE, 20, 97 Tetramethylmethylglucoside, MIXTURE OF a AND j8, 20,100 Tetramethyl-tt-methylglucoside, 20, 99 Tetranitromethane, 21,105 Tetranitromethane as reagent for detecting double bonds, 21, 107 Tetraphenylcyclopentadienone, 23, 92, 93... 

The photoreaction of cyclohexene with carbonyl compounds showed that attack at the allylic position of the cyclohexene molecule as well as addition to the double bond occurred (7). An attack at the allylic position of this compound is common in free radical reactions. It is therefore noteworthy that in the reaction of cyclohexene with formamide only addition products of formamide to cyclohexene were detected under these reaction conditions (i.e. temperature and concentrations of the various reagents employed). The concentration of the various reagents, or the facile addition step of the carbamoyl radical towards double bonds may account for these results. 

Tetranitromethane is used as an oxidizer in rocket propellants, as a diesel fuel additive, and as an explosive. It is used as a biochemical agent to nitrate tyrosine proteins. It is also used as an organic reagent for detecting the presence of double bonds, and as a mild nitrating reagent, reacting with tyrosine residues in proteins and peptides. 

OTHER COMMENTS used in rocket fuel, as an oxidant or monopropellant used as a qualitative test for unsaturated compounds (i.e., a reagent for detecting the presence of double bonds in organic compounds) used as a diesel fuel booster (i.e., increases cetane number of diesel fuels) utilized as an ingredient in manufacture of liquid explosives. 

The addition reactions which were discussed in Sections 4.1 and 4.2 are initiated by interaction of a proton with the alkene, which then permits nucleophilic attack on the double bond. The role of the initial electrophile can be played by metal ions as well. Mercuric ion is the electrophile in several synthetically valuable procedures.The most commonly used reagent is mercuric acetate, but trifluoroacetate or nitrate salts are preferable in some applications. A general mechanism depicts a mercurinium ion as the first intermediate. Such species can be detected by physical measurements when alkenes react with mercuric ion in nonnucleophilic solvents.Depending on the structure of the particular alkene the mercurinium ion may be predominantly bridged or open. The addition is completed by attack of a nucleophile. The nucleophiles which react satisfactorily for synthetic... 

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