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Double bonds, miscellaneous addition

The allenes 1 directly connected with an electron-withdrawing substituent have been used successfully as synthetic building blocks for more than four decades (see Scheme 7.1). The polarization of the C=C double bonds by the acceptor substituent allows a wide and very useful range of subsequent reactions, for example nucleophilic additions, cycloadditions and miscellaneous syntheses of heterocydes. [Pg.359]

Miscellaneous Routes. Polyamides have been prepared by other reactions, including addition of amines to activated double bonds, polymerization of isocyanates, reaction of formaldehyde with dinitriles, reaction of dicarboxylic acids with dllsocyanates, reaction of carbon suboxide with diamines, and reaction of diazlactones with diamines. These reactions are reviewed in Reference 4. [Pg.162]

Miscellaneous and Anomalous Ozonolysis. Numerous cases of nearby alcohols and other functional groups participating in novel fragmentation of the ozonide can be found however, their general use in synthesis is somewhat limited. In addition, anomalous ozonolysis, usually defined as an ozonolysis reaction where the double bond as well as an adjacent single bond is cleaved, can be found throughout the literature. Most of these miscellaneous... [Pg.300]

VI. Other Addition Reactions to Double Bonds Vn. Oxidation Reactions of Polymers Vin. Functionalization of Polymers IX. Miscellaneous Chemical Reactions of Polymers X. Block and Graft Copolymerization References... [Pg.497]

In conclusion, stilbenes involve in miscellaneous chemical reactions. For non-substituted stilbenes, the most chemically reactive part is double bond, which relatively easily undergoes the halogenation, epoxidation, oxidation, reduction, and addition. The chemistry of substituted stilbenes is in principle as rich as organic chemistry. Including stilbenes in dendrides, dextrins, polymers, and surfaces led to a sufficient change in their chemical, photochemical, photophysical, and mechanical properties and, therefore, establishes the basis for design of new materials. [Pg.62]

Volume IV/8C summarizes most of the observed values of densities of unsaturated aliphatic hydrocarbons which include normal and branched alkenes, alkadienes, alkynes, and miscellaneous compounds such as alkatrienes and compounds with double and triple bonds in the crystal and liquid phases that have been reported in the world s scientific hterature. The values Usted have been extracted from the TRC Source Database. These data have been collected by the Thermodynamics Research Center over a period of years and used as a basis for density values listed in the TRC Thermodynamic Tables -Hydrocarbons. An additional literature search was made to locate other data and bring the collection np to date. It is believed that this compilation includes at least 90% of the pertinent data reported in the literature. The usual experimental conditions are in contact with air at one atmosphere below the normal boiling point of the hydrocarbon, and in equilibrium with the vapor phase above the normal boiling point. In the summary tables, temperatures are reported on the Kelvin scale. These were obtained by adding 273.15 to temperatures originally given on the Celsius scale. [Pg.5]


See other pages where Double bonds, miscellaneous addition is mentioned: [Pg.249]    [Pg.136]    [Pg.174]    [Pg.174]    [Pg.174]    [Pg.148]    [Pg.50]    [Pg.174]    [Pg.264]    [Pg.75]    [Pg.190]   


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