Mixed alkyl

Claisen-Schmidt reaction. Aromatic aldehydes condense with aliphatic or mixed alkyl-aryl ketones in the presence of aqueous alkali to form ap-unsaturated ketones ... 

Reactions with Acyl Garbanion Equivalents. Alkyl substituted carbanions CRXY with potential leaving groups X, Y, and acyl carbanion equivalents or CHRX (342) react with alkylboranes, providing products with mixed alkyl groups derived from both reagents. 

In addition to the mono- and dialkylamines, representative stmctures of this class of surfactants include /V-alkyltrimethylene diamine, RNH(CH2)3NH2, where the alkyl group is derived from coconut, tallow, and soybean oils or is 9-octadecenyl, 2-aLkyl-2-imidazoline (3), where R is heptadecyl, heptadecenyl, or mixed alkyl, and l-(2-aniinoethyl)-2-aLk5l-2-imidazoline (4), where R is heptadecyl, 8-heptadecenyl, or mixed alkyl. 

Formation of Sulfides. Thiols react readily with alkenes under the same types of conditions used to manufacture thiols. In this way, dialkyl sulfides and mixed alkyl sulfides can be produced. Sulfides are a principal by-product of thiol production. Mixed sulfides can be formed by the reaction of the thiol using a suitable starting material, as shown in equations 21, 22, and 23. Vinyl sulfides can be produced by the reaction of alkynes with thiols (38). 

Novel, mixed alkyl cyclopentadienides have also been prepared for the heavy lanthanides ... 

In the case of diaryl sulfoxides the formation of both the aryl radical and the hydroxycyclohexadienyl radical was observed optically. Veltwisch and coworkers45 studied also the reaction of OH radicals from radiolysis of aqueous solutions of mixed (alkyl phenyl) sulfoxides (PhSOR). They found the formation of both alkylsulfinic and phenylsulfinic acids. 

Phenyl or mixed alkyl/phenyl substituted silicon hydrides show similar reactivities to trialkylsilanes. Indeed, by replacing one alkyl by a phenyl group the effect on the hydrogen donating ability of SiH moiety increases only slightly. ... 

In a mixed alkyl-thienyl cyanocuprate, only the alkyl substituent is normally transferred as a nucleophile. 

Mixed alkyl)dichalcogenocarbamate complexes as precursors for ternary materials... 

It is, of course, possible to copolymerise mixed alkyl acrylic esters to achieve a compromise in these properties. Alkoxy acrylic esters also confer improved low temperature properties. 

We have already mentioned that the mixed alkyl halide compounds of aluminum dimerize, and the solubility parameters shown in Table 12.1 for these compounds are consistent with that assessment. The solubility parameters for triethylboron and diethylzinc are 15.4 and 18.2 in J cm 3/2, respectively. These values are indicative of liquids that are not strongly associated, which is known to be the case. 

In some cases, metallic tin reacts directly with an alkyl halide to produce mixed alkyl halide compounds. 

Mixed alkyl halide compounds result from the reaction of dialkylcadmium with cadmium halides. 

The reaction of a halogen with a tetraalkyl tin gives mixed alkyl halides. 

Scrambling reactions occur between R4Sn and SnX4 to give mixed alkyl halides. 

As in the case with the other members of group IVA, the mixed alkyl and aryl halides of lead are also known, and their reactions with water, alcohols, amines, and other organic compounds can be used to prepare a large number of other derivatives. 

Mixed alkyl plumbanes can be prepared via trialkylplumbylmagnesium chlorides378 by the sequence of reactions... 

The other major approach toward overcoming the "alkyl transfer" difficulty of the Abramov reaction involves the use of silyl esters of the trivalent phosphorus acids. Unlike carbon, silicon does not have the stereochemical restraints associated with ordinary alkyl groups for intramolecular transfer.211 The preparation of mixed alkyl—silyl esters of trivalent phosphorus acids paved the way for the Abramov reaction to be of general utility.204 208 212 An example is shown in Equation 3.14. 

Dynaphen A process for converting mixed alkyl phenols (from coal liquids or lignin) to benzene, phenol, and fuel gas, by noncatalytic hydrogenation at high temperature. Developed and offered by Hydrocaibon Research. 

D.A.M. Egbe, S. Sell, C. Ulbricht, E. Birckner, and U.-W. Grummt, Mixed alkyl- and alkoxy-substituted poly[(phenylene ethynylene)-a/t-(phenylene vinylene)] hybrid polymers synthesis and photophysical properties, Macromol. Chem. Phys., 205 2105-2115, 2004. 

Stannyllithium compounds are important as sources of nucleophilic stannyl anions, and the dialkyltin lithium hydrides, R2SnLiH, have recently come to prominence as their reaction with electrophilic alkyl halides gives hydrides, R1R2SnH, with mixed alkyl groups (see Section 3.14.18.1).397... 

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