Butyl butanoate

The conversion of primary alcohols and aldehydes into carboxylic acids is generally possible with all strong oxidants. Silver(II) oxide in THF/water is particularly useful as a neutral oxidant (E.J. Corey, 1968 A). The direct conversion of primary alcohols into carboxylic esters is achieved with MnOj in the presence of hydrogen cyanide and alcohols (E.J. Corey, 1968 A,D). The remarkably smooth oxidation of ethers to esters by ruthenium tetroxide has been employed quite often (D.G. Lee, 1973). Dibutyl ether affords butyl butanoate, and tetra-hydrofuran yields butyrolactone almost quantitatively. More complex educts also give acceptable yields (M.E. Wolff, 1963). 

Butyl acetate Pentyl acetate Hexyl acetate 2-Methylbutyl acetate Hexyl propane ate Ethyl butanoate Butyl butanoate Hexyl butanoate Methyl 2-methylbutanoate Ethyl 2-methylbutanoate Propyl 2-methylbutanoate Butyl 2-methylbutanoate Hexyl 2-methylbutanoate Ethyl hexanoate Ethyl octanoate Ethyl ( )-2-octenoate Methyl ( ,Z)-2,4-decadienoate Ethyl ( ,Z)-2,4-decadienoate... 

More recently, several aroma compounds were isolated from cupuacu pulp by vacuum distillation, solid-phase extraction, and simultaneous steam distil-lation-extarction and were analysed by GC, GC-MS, and GG-O [8]. The olfaction of the extracts obtained by solid-phase extraction indicated linalool, a-ter-pineol, 2-phenylethanol, myrcene, and limonene as contributors of the pleasant floral flavour. In this study, the esters ethyl 2-methylbutanoate, ethyl hexanoate, and butyl butanoate were involved in the typical fruity characteristics. 

Butyl butanoate E > 100 Butyl butanoate E > 100 Trifluoroethyl butanoate DIPE E = 75 Trifluoroethyl butanoate DIPE E = 380 Butyl butanoate/DIPE 1/1 E >1000 Trifluoroethyl butanoate DIPE E > 200... 

The method of internal normalisation was chosen to determine the mass composition of a sample comprising a mixture of four esters of butanoic acid. To this end, a reference solution containing known % masses of these esters led to the following relative values of the response coefficients of the butanoates of methyl (ME), of ethyl (EE), and of propyl (PE), all three in ratio with butyl-butanoate (BE). 

Optically active p-lactams.2 The reaction of the enolate of /-butyl butanoate with the optically active silylimine 2, prepared from silylated 1, provides the optically active p-lactam 3. The optical purity and configuration of 3 was established by conversion to the antibiotic carbapenem ( + )-PS-5 (4). 

Figure 9. Comparison of ester formation by Golden Delicious apples one day after treatment with pentanal and hexanal. 1 butyl acetate, 2 = 3-methylbutyl acetate, 3 = pentyl acetate, 4 = hexyl acetate, 5 = butyl propionate, 6 = pentyl propionate, 7 = hexyl propionate, 8 = butyl butanoate, 9 = butyl 2-methylbutanoate, 10 hexyl 2-methylbutanoate, 11 = hexyl pentanoate, 12 = hexyl hexanoate.

C8H1602 tert-butyl butanoate 2308-38-5 224.17 13.431 2 15454 C8H180 2-ethyl-1-hexanol 104-76-7 203.15 19.597 2... 

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