4- Ethyl-4-hydroxy-3-hexanone

Hydroxy-4-ethyl-3-hexanone, 449 Hydroxyethylthiol carbonate, 383 3/3-Hydroxy-A , -etioallocholadienic acid,... 

ACETATE AND ALDEHYDES OR KETONES ETHYL 1-HYDROXYCYCLO-HEXYLACETATE, 53, 66 2- (Hydroxymethylene)cyclohexanone with p-toluenesulfonyl azide to give 2-diazocyclo-hexanone, 51, 86 y-HYDROXY-ct, (3-UNSATURATED ALDEHYDES VIA 1,3-BIS(METHYL-THIO) ALLYLLITHIUM trans-4-HYDROXY-2-HEXENAL, 54, 19... 

Additional aldehydes and ketones were also included in the U.S. Nationwide Occurrence Study dimethylglyoxal (2,3-butanedione), cyanoformaldehyde, 2-butanone (methyl ethyl ketone), trans-2-hexanal, 5-keto-l-hexanal, and 6-hydroxy-2-hexanone [11, 13]. Dimethylglyoxal was the most consistently detected of these carbonyl compounds (up to 3.5 pg/L) and was found at higher levels in plants using ozone. Maximum levels of 0.3, 5.0, and 0.7 pg/L were observed for cyanoformaldehyde, 2-butanone, and trans-2-hexenal, respectively 6-hydroxy-2-hexanone and 5-keto-1 -hexanal were only detected in early stages of treatment, and not in finished waters. 

Methyl ethyl ketone (2-butanone) 6-Hydroxy-2-hexanone Dimethylglyoxal (2,3-butanedione)... 

C12H1404 ethyl 4-hydroxy-3-methoxycinnamate 4046-02-0 527.09 46.493 2 24193 C12H160 2-phenyl-3-hexanone 65248-43-3 514.15 45.245 1.2... 

Figure 5.2.11. Cellulose pyrolysate obtained at 59(P C and separated on a methyl silicone with 5% phenyl silicone type column. 1 acetic anhydride, 2 pentanal, 3 2-hydroxybutanedialdehyde, 4 1,4-dioxadiene, 5 tetrahydro-2-furanmethanol, 6 2-(hydroxymethyl)-furan, 7 3-methyl-2-hexanone, 8 2-methoxy-2,3-dihydrofuran, 9 2(5H)-furanone, 10 1-acetyloxypropan-2-one, 11 hydroxycyclopentenone, 12 5-methylfurfural, 13 2,3-dihydro-5-methylfuran-2-one, 14 1-cyclopentylethanone, 15 2-hydroxy-3-methyl-2-cyclopenten-1-one, 16 3,5-dimethylcyclopentan-1,2-dione, 17 unknown, 18 3-ethyl-2,4(3H,5H)-furandione, 19 6-methyl-1,4-dioxaspiro[2,4]heptan-5-one, 20 1-hydroxy-3,6-dioxabicyclo[3.2.1]octan-2-one, 21 1,4 3,6-dianhydro-a-D-glucopyranose, 22 5-(hydroxymethyl)-furfural, 23 4-cyclopenten-1,2,3-triol, 24 5-ethyl-3-hydroxy-4-methyl-tetrahydrofuran-2-one, 25 levoglucosan, 26 1,6-anhydro-p-D-glucofuranose.

Hydroxymethylation of ketones.1 A ketone can be converted into the a-hydroxy-methyl derivative in two steps acylation with ethyl formate, followed by aluminum hydride reduction. The sequence is illustrated for the conversion of 4-/er/-butylcyclo-hexanone (1) into 2-hydroxymethyl-4-te rt-butylcyclohexanone (3). 

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