2- hexyl phenyl

C6H5-C = CHC4Hg-n from a-diazoketones. Ethereal methyllithium added dropwise at 0 to a soln. of di-n-butyl-(l-phenyl-l-hexenyloxy)borane prepared from diazoacetophenone and tri-n-butylborane in tetrahydrofuran, the ice bath removed, stirred 1 hr. at room temp., methyl iodide added, and stirring continued 1.5 hrs. 2-hexyl phenyl ketone. Y 69%. Via vinyloxyboranes, a,a- and ,/5-dialkylated ketones can be obtained in good yield from a-diazoketones and methyl vinyl ketone respectively. F. e. s. D. J. Pasto and P. W. Wojtkowski, J. Org. Chem. 36, 1790 (1971). 

Preparation by Fries rearrangement of 4-chloro-2-hexyl-phenyl p-chlorobenzoate with aluminium chloride at 160° for 15 min [1107]. 

Bis(imino)pyridine iron complex 5 acts as a catalyst not only for hydrogenation (see 2.1) but also for hydrosilylation of multiple bonds [27]. The results are summarized in Table 10. The reaction rate for hydrosilylations is slower than that for the corresponding hydrogenation however, the trend of reaction rates is similar in each reaction. In case of tra s-2-hexene, the terminal addition product hexyl (phenyl)silane was obtained predominantly. This result clearly shows that an isomerization reaction takes place and the subsequent hydrosilylation reaction dehvers the corresponding product. Reaction of 1-hexene with H2SiPh2 also produced the hydrosilylated product in this system (eq. 1 in Scheme 18). However, the reaction rate for H2SiPh2 was slower than that for H3SiPh. In addition, reaction of diphenylacetylene as an atkyne with phenylsilane afforded the monoaddition product due to steric repulsion (eq. 2 in Scheme 18). 

In the reaction of a-sulfonyl carbanion with lactones, the corresponding hydroxy-co-ketosulfones were obtained " . Thus, various o-hydroxyketones were shown by Umani-Ronchi and coworkers to be formed from the corresponding lactones. For example, the reaction of a, a-dilithioalkyl phenyl sulfones with lactones in THF at low temperatures afforded co-hydroxy-jS-ketosulfones which, upon desulfonylation with aluminium amalgam, gave the corresponding hydroxyketones . This process was applied for the syntheses of cis-jasmone and dihydrojasmone by treating y-valerolactone with ds-3-hexen-l-yl phenyl sulfone and n-hexyl phenyl sulfone. ... 

Figure 4.31 Total energy per Si repeat unit of (a) methyl(phenyl)silane oligomer 42 with 21 Si repeat units and (b) n-hexyl(phenyl)silane oligomer 46 as a model of 43 with 31 Si repeat units as a function of the Si-Si-Si-Si dihedral angle.

Despite their importance in many pharmacological uses and potential applications, solubilities of hydroxypyranones, hydroxypyridinones, and their complexes have not been extensively and systematically investigated and established. This situation contrasts sharply with that for partition coefficients, as will become apparent in the following section. The solubility of maltol in water is approximately 0.1moldm , of ethyl maltol 0.13 mol dm, at 298 K. 1,2-Alkyl-3-hydroxy-4-pyridinones show the expected decrease in water-solubility as the sizes of the alkyl groups increase solubilities - in water at 298 K - of l-aryl-2-methyl-3-hydroxy-4-pyridinones decrease from 9 X 10 mol dm for the 1-phenyl compound through 6 x lO- moldm for l-(4 -tolyl) to 6 x 10 mol dm for l-(4 -re-hexyl-phenyl) (37). 

Ci3Hi80) Hexyl phenyl ketone M. Loss of a CsHn radical from metastable ions 17.6—20.8 g, m, o 73... 

Acetylenes react with arenetellurolates to form aryl vinyl tellurides. The vinyl groups in vinyl aryl telluriums are converted to vinyl carboxylic acids by carbon monoxide in the presence of stoichiometric amounts of palladium dichloride1 or diacetate2 4. The yield and the product distribution is influenced by the reaction time, the CO pressure, the presence or absence of lithium chloride or triethyl amine, and the concentration of palladium salt. Diphenyl tellurium was converted to benzoic acid1,3. Hexyl phenyl tellurium formed only benzoic acid and no heptanoic acid1. 

Pbosphinsaure (1-Mercapto-cyclo-hexyl)-phenyl- E2, 132 (R —PC12 + CH20/H20)... 

Benzyl-ethyl-isopropyl- IV/ld, 358 Bis-[3-methyl-2-methylen-3-butenyl]-E18, 1032 (Allen + Amin) Dipropyl-phenyl- XI/1, 216 Hexyl-phenyl- XI/1, 947 Anilln... 

Dibromo-(2-methoxy-hexyl)-phenyl-E12b, 547 (Ar—TeBr3 + Ent R-OH)... 

A similar reaction carried out with cyclohexene led to the formation of 3-methoxycyclohexene When this reaction sequence is carried out with internal olefins, the methoxyalkyl phenyl tellurium oxides are not stable and decompose to methoxyalkenes in the basic medium required for the hydrolysis of the methoxyalkyl phenyl tellurium dibromides(see p. 583). Aqueous solutions of sodium hydrogen carbonate cause the same transformations at a slower rate". Thus, 5-hydroxy and 5-methoxy-4-hexyl phenyl tellurium dibromide were converted to the corresponding 5-substituted 3-hexenes. 3-Hydroxy- and 3-methoxy-l-cycloheptene were similarly obtained. ... 

THPP mcio-Tetra[p-( hexyl)phenyl]porphyrin... 

Figure 7.15a is a schematic illustration of the field-effect transistor sensor with semiconductor 5, 5 -bis (4-n-hexyl-phenyl)-2, 2/-bithiophene (6PTTP6) film serving as the active layer. This unfunctionalized sensor shows some inherent sensitivity to DMMP. Figure 7.16 compares the change of the saturation source-drain current of 6PTTP6 sensor before and after exposure to saturated DMMP vapor, with source-drain voltage Vb set to be —100 V. 

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