Octanal dimethyl acetal

Acetals derived from aliphatic aldehydes have odor characteristics that resemble those of the aldehydes but are less pronounced. These acetals contribute to the aroma of alcoholic beverages, but can rarely be used in flavoring compositions because they are not sufficiently stable. Since they are resistant to alkali, a number of them (e.g., heptanal dimethyl acetal and octanal dimethyl acetal) are occasionally incorporated into soap perfumes. 

C21-dicarboxylic acid. See Cyclocarboxypropyloleic acid C-8 dimethyl acetal. See Octanal dimethyl acetal C13-15 dimethyl tert. amine. See Dimethyl C13-15 alkyl amine CDNA. SeeDicloran CDOL. See Cyclododecanol CDON. See Cyclododecanone CDPS. See 4,4 -Dichlorodiphenyl sulfide CDrySet. See Starch... 

Synonyms 1,1 -Dimethoxy-3,7-dimethyl-7-octanol 8,8-Dimethoxy-2,6-dimethyl-octanol-2 8,8-Dimethyl-2,6-dimethyl-2-octanol Hydroxyacetal Hydroxycitronellal dimethylacetyl Hydroxycitronellal DMA Hydroxydihydrocitronellal dimethyl acetal 7-Hydroxy-3,7-dimethyl octanahacetal 7-Hydroxy-3,7-dimethyl octanal dimethyl acetal Laurine dimethyl acetal Octanal, 7-hydroxy-3,7-dimethyl-, dimethyl acetal 2-Octanol, 8,8-dimethoxy-2,6-dimethyl-Empirical C12H26O3... 

Hydroxy-3,7-dimethyloctanal 7-Hydroxy-3,7-dimethyloctan-1-al. See Hydroxycitronellal 7-Hydroxy-3,7-dimethyl octanal acetal 7-Hydroxy-3,7-dimethyl octanal dimethyl acetal. See Hydroxycitronellal dimethyl acetal 7-Hydroxy-3,7-dimethyloctan-1-al, distillation residue 7-Hydroxy-3,7-dimethyloctan-1-al, residue. See Hydroxycitronellal residue... 

Octanaldehyde. See n-Octanal Octanal dimethyl acetal CAS 10022-28-3 EINECS/ELINCS 233-018-4 FEMA 2798... 

Y-Octalactone n-Octanal Octanal dimethyl acetal Octane 2-Octanol 3-Octanol 3-Octanone 3-Octanon-1-ol 1-Octen-3-ol cis-3-Octen-1-ol... 

Nonyl alcohol Nonyl isovalerate Nonyl octanoate y-Octalactone n-Octanal Octanal dimethyl acetal 2-Octanol 3-Octanol 3-Octanone 3-Octanon-1-ol 1-Octen-3-ol cis-3-Octen-1-ol 1-Octen-3-yl acetate 1-Octen-3-yl butyrate Octyl acetate 3-Octyl acetate Octyl butyrate Octyl formate Octyl isobutyrate Octyl isovalerate Octyl octanoate Octyl phenylacetate Octyl propionate Pelarqonyl vanillylamide Pentadecalactone... 

Octanal dimethyl acetal 233-020-5 Barium nitrate 233-032-0 Nitrous oxide 233-036-2... 

Acetaldehyde ethyl hexyl acetal 1,10-Decanediol Di-t-amyl peroxide 2,6-Dimethyloctan-2-ol Ethylene glycol dibutyl ether Ethylene glycol 2-ethylhexyl ether Hydroxycitronellol Octanal dimethyl acetal C10H22O3... 

TetracycIo[3.3.0.02 8.03,6 octan-4-one Dimethyl Acetal Typical Procedure 14S... 

To 3-chlorotetracyclo[3.3.0.02 8.03,6]octan-4-one dimethyl acetal (6 g. 30 mmol) and r-BuOH (33 g, 0.44 mo ) in THF (160 mL) was added Na (5 g, 0.22 mol) in small pieces. The mixture was heated to reflux for 8 h. After cooling, excess Na was destroyed by adding MeOH and the mixture was poured into ice H20 (700 mL). The aqueous phase was saturated with NaCI and extracted several times with Et20. Drying, evaporation and distillation at 0.01 Torr gave the title compound yield 4.1 g (82%). 

The resulting 5-methylene-2-oxa-l-silacyclohexanes are insufficiently Lewis acidic to react with a second equivalent of the carbonyl compound. However, the incipient allylsilane does react with dimethyl acetals in decent yields in the presence of external Lewis acids including BF3-Et20 or AICI3. Based on these results, double allylation of dicarbonyl compounds with 3-methylene-l,l-diphenyl-l-silacyclobutane was examined, leading to the formation of 3-methylene-oxabicyclo[3.2.1]octanes. This transformation proceeded in one pot and in the presence of BF3-Et20 (Scheme 42). 

However, 6,6-dimethyl-l-methylene-4,8-dioxaspiro[2.5]octane, an acetal of 2-methylenecyclo-propane, undergoes a thermally induced [3 + 2] cycloaddition with simple ketones to yield acetals of a-methylene-y-lactones. ... 

Aldehyde 14. SeeUndecanal Aldehyde Cl. See Formaldehyde Aldehyde C3. See Propionaldehyde Aldehyde C-5. See n-Valeraldehyde Aldehyde C-6. See Hexanal Aldehyde C-7. See Heptanal Aldehyde C-8. See n-Octanal Aldehyde C-9. See Nonanal Aldehyde CIO. See Decanal Aldehyde C-12. See Laurie aldehyde Methyl nonyl acetaldehyde Aldehyde C-13. See n-Tridecaldehyde Aldehyde C-14. See Myristaldehyde Aldehyde C14. Seey-Undecalactone Aldehyde C-16. See Ethyl methylphenylglycidate Aldehyde Cl 8. See y-Nonalactone Aldehyde C-7 dimethyl acetal. See Heptanal dimethyl acetal... 

Octanecarboxylic acid. See Nonanoic acid 1-Octane, 1-chloro-. See Octyl chloride 1,8-Octanedicarboxylic acid Octane-1,8-dicarboxylic acid. See Sebacic acid Octane, 1,1-dimethoxy-. SeeOctanal dimethyl acetal... 

Bkycloheptane and Bicyclo-octane Derivatives.—Room temperature addition of diphenyldiazomethane to 7-t-butoxynorbornadiene yielded all of the possible 1,3-dipolar cycloaddition products (exo rule not obeyed). Pyrolysis of these adducts effects entry to the 3,3-diphenyltricyclo[3,2,l,0 ]octane system e.g. (852) is thus obtained. Procedures for the preparation of tricyclo[3,2,l,0 ]oct-6-ene-3-carboxylic acids, e.g. (853), essentially isomer-free have been described. Reductive dechlorination of (854), the Diels-Alder product of addition of 3,3-dimethylcyclo-propene to tetrachlorocyclopentadienone dimethyl acetal, followed by acetal hydrolysis and cheletropic loss of CO has been used to prepare 7,7-dimethylcyclohepta-triene. °... 

Octan-l-ol acetate Rh Oct-trans-2-en-l-al Rh Octa-2-6-diene-l-8-diol, 2-6-dimethyl Rh Octa-3-7-diene-l-6-diol, 2-6-dimethyl Rh Octa-3-cis-6-dien-l-al, 3-7-dimethyl Rh Octa-d-tram-h dien-l-al, 3-7-dimethyl Rh Octa-traTiS 2 CiS 6 dien l ol, 3-7 dimethyl 8-hydroxy, P-D-glucopyranoside Rh 5.2 °... 

Fig. 2.4. Chromatographic profiles of volatiles emitted by four plant species at different time periods after an attack by Spodoptem littoralis larvae. The labeled peaks are 1, (Z)-3-hexenal 2, ( )-2-hexenal 3, (Z)-3-hexenol 4, (Z)-3-hexenyl acetate 5, linalool 6, ( )-4,8-dimethyl-1,3,7-nonatriene 7, indole 8, ( )-/ -caryophyllene 9, ( ,)-o -bergamotene 10, ( >/3-farnesene 11, ( , )-of-farnesene 12, nerolidol 13, ( , )-4,8,12-trimethyl-1,3,7,11-tridecatetraene 14, of-pinene 15, /3-pinene 16, -myrcene 17, D-limonene 18, ( )-/3-ocimene 19, -sesquiphellandrene 20, germacrene D. Two internal standards, -octane and nonyl acetate, are labeled with IS1 and IS2, respectively.

Lithium chloride (2.6 g) is dissolved in THF (170 mL). Dimethyl-(2-oxo-4-phenylbutyl)phosphonate (7.87 g) and triethylamine (4.3 mL) are added. The mixture is stirred and cooled to -10°C. A solution of the Corey aldehyde benzoate, (lS,5R,6R,7R)-6-formyl-7-(benzyloxy)-2-oxabicyclo[3.3.0]octan-3-one (8.42 g) in THF (75 mL) is added to the reaction mixture over three hours. The resulting mixture is stirred for 18 hours at -10°C. At the end of this time, methyl t-butyl ether (MTBE) (100 mL) is added and the mixture warmed to 0-20°C. Sodium bisulfite (38%, 100 mL) is added and the two-phase mixture was stirred for 10 min. The phases are separated and the organic phase is washed with saturated aqueous sodium bicarbonate solution (100 mL). The organic phase is separated and concentrated under reduced pressure to a volume of <100 mL. Ethyl acetate (200 mL) is added and the... 

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