Benzyl propyl ketone

Draw the structure of benzyl propyl ketone and then give the lUPAC name using normal rules for naming an aliphatic ketone (Chapter 16, Section 16.2.1). 

Ethyl propyl Benzyl ethyl ketone Divinyl ketone... 

Zn, phenylacetonitrile, and a little Hgig added to bromozinc a-bromobutyrate in tetrahydrofuran, and refluxed ca. 2 hrs. until the Zn has disappeared benzyl n-propyl ketone. Y 77%. F. e. s. M. Bellassoued and M. Gaudemar, J. Organo-metal. Chem. 81, 139 (1974). 

Cn O Benzyl-[a-pbenyl-/7-beozyl.y-beazy liden-propyl].keton 7, 550. 

The ketones are readily prepared, for example, acetophenone from benzene, acetyl chloride (or acetic anhydride) and aluminium chloride by the Friedel and Crafts reaction ethyl benzyl ketones by passing a mixture of phenylacetic acid and propionic acid over thoria at 450° and n-propyl- p-phenylethylketone by circulating a mixture of hydrocinnamic acid and n-butyric acid over thoria (for further details, see under Aromatic Ketones, Sections IV,136, IV,137 and IV,141). 

The dibenzyl ketone has a very high b.p. (ca. 200°/21 mm.) and this remains in the flask when the unsymmetrical ketone has been removed by distillation. The dialkyl ketone has a comparatively low b.p. and is therefore easily removed by fractionation under normal pressure acetone is most simply separated by washing with water. In this way methyl benzyl ketone (R = CHj), ethyl benzyl ketone (R = CHgCH,) and n-propyl benzyl ketone (R = CHjCHjCH,) are prepared. By using hydrocinnamic acid in place of phenylacetic acid ... 

When exposed to ait, the sodium salts tend to take up moisture and form dihydrates. The alkah metal xanthates are soluble ia water, alcohols, the lower ketones, pyridine, and acetonitrile. They are not particularly soluble ia nonpolar solvents, eg, ether or ligroin. The solubiUties of a number of these salts are Hsted ia Table 4. Potassium isopropyl xanthate is soluble ia acetone to ca 6 wt %, whereas the corresponding methyl, ethyl, / -propyl, n-huty isobutyl, isoamyl, and benzyl [2720-79-8] xanthates are soluble to more than 10 wt % (12). The solubiUties of the commercially available xanthates ia water are plotted versus temperature ia Figure 1 (14). 

Phenyl re-propyl carbinol Propyl benzyl ketone R A. Cd salt — 108.7(W) 138... 

C-(w-propyl)-N-phenylnitrone to N-phenylmaleimide, 46, 96 semicarbazide hydrochloride to ami-noacetone hydrochloride, 45,1 tetraphenylcyclopentadienone to diphenyl acetylene, 46, 44 Alcohols, synthesis of equatorial, 47, 19 Aldehydes, aromatic, synthesis of, 47,1 /8-chloro-og3-unsaturated, from ketones and dimethylformamide-phosphorus oxychloride, 46, 20 from alkyl halides, 47, 97 from oxidation of alcohols with dimethyl sulfoxide, dicyclohexyl carbodiimide, and pyridinium trifluoroacetate, 47, 27 Alkylation, of 2-carbomethoxycyclo-pentanone with benzyl chloride, 45, 7... 

BEL525 CAS 7083-24-1 HR 3 BENZYL 1-(2-(DIMETHYLAMINO)-PROPYL)PYRROL-2-YL, CITRATE KETONE... 

TKB285 CAS 101931-68-4 HR 3 (3,3,3-TRIFLUORO-2-HYDROXY-2-(TRIFLUOROMETHYL))PROPYL BENZYL KETONE... 

There are, however, other examples. In the presence of potassium tertiary butoxide, quinine and benzophenone are equilibrated with quininone and benzhydrol.37 Benzyl,38 methyl,39 ethyl,39 40 propyl,39 butyl,39 and amyl39 alcohols will reduce ketones to the corresponding secondary alcohols on heating at high temperatures with sodium or potassium hydroxide. In all these cases it is probable that the reaction proceeds by the intermolecular transfer of a hydride ion from the alkoxide ion to the carbonyl group. 

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