7-Methyl-l,6-octadiene

Oxidative cyclisation of 1,6-dienes to trani-2,6-bis(hydroxyl-methyl)-tetrahy-dropyranyl-diols was effected by RuClj/aq. Na(lO )/CH3CN-EtOAc/0°C 1,6-heptadiene (1) and 7-methyl-l,6-octadiene (2) were so oxidised (Fig. 3.13 cf. mech. Ch. 1) [184],. 

Non-conjugated dienes have also been co-polymerized with ethylene. Examples are 1,4-pentadiene,559 1,5-hexadiene,560-563 1,7-octadiene,562-564 and 7-methyl-l,6-octadiene.562... 

Hackmann, M. Rieger, B. Functional olefin copolymers Uniform architectures of propene/7-methyl-l,6-octadiene copolymers by ATR-FTIR spectroscopy control of monomer composition. Macromolecules 2000, 33, 1524-1529. 

SYNS FEMANo.2762 3-METHYLENE-7-METHYL-1,6-OCTADIENE 7-METHYX-3-METHYXENE-l,6-OCTADIENE... 

Figure 5.1a (1) cis and trans linalool oxide (5-ethenyltetrahydro-a,a,5-trirnethyl-2-furanmethanol) (furanic form) (2) linalool (3,7-dimethyl-l,6-octadien-3-ol) (3) a-terpineol (a,a,4-trimethyl-3-cycloexene-l-methanol) (4) (Z,E) ocimenol (2,6-dimethyl-5,7-octen-2-ol) (5) cis and trans linalool oxide (pyranic form) (6) citronellol (3,7-dimethyl-6-octen-l-ol) (7) nerol (Z), geraniol (E) (3,7-di-methyl-2,6-octadien-l-ol) (8) Ho-diendiol I (3,7-dimethyl-l,5-octadiene-3,7-diol) (9) endiol (3,7-dimethyl-l-octene-3,7-diol) (10) Ho-diendiol II (3,7-dimethyl-l,7-... 

Et(Ind)2ZrCl2/MAO gives copolymers of ethylene or propylene with nonconjugated dienes, such as 2-methyl-1,4-pentadiene, 7-methyl-1,6-octadiene and 1,7-octadiene, (Eq. 23) [103]. rac-Et(Ind)2ZrCl2/MAO also catalyzes copolymerizations of asymmetrically substituted linear dienes, 6-phenyl-1,5-hexadiene, 7-methyl-1,6-octadiene, and R-(+)-5,7-dimethyl- 1,6-octadiene. The copolymerization of R-(+)-5,7-dimethyl-l,6-octadiene with propylene to give the polymer with ca. 15% diene incorporation. The ratio of the diene-derived part is ca. 15% of the polymer [104]. 

In the reactions of 3-methyl- and 3,7-dimethyl-l,6-octadien-3-ol, direction comes from the difference between hydroxy and methyl groups, providing a substantial 10 1 bias when the eneophilic alkene bears a cis substitution32-33. A preference for the cis relationship of substituents about C-2 and C-3 in this thermally induced reaction is noted. 

Propanoic acid, 2-methyl-, 3,7-dimethyl-l,6-octadien-6-yl ester... 

Methyl isoamyl ketone, m267 2-Methyllactic acid, hi 27 7-Methyl-3-methylene-l, 6-octadiene, m453 ... 

Fig. 4.5 Extent of hydrolysis of glycoside of different volatile compounds during MLF with four strains of malolactic bacteria (MLB). Values are calculated as a percentage ratio between the concentration of glycosides in MLF samples and in a non-MLF control. Sum of 1-hexanol, trans- and CM-3-hexenol, trans- and c/i-2-hexenol sum of isoamyl alcohols, heptanol, and 4-hydroxy-4-methyl-2-pentanol sum of benzyl alcohol and 2-phenylethanol sum of vanillin and benzaldehyde sum of 4-vinylphenol and 4-vinylguaiacol sum of Unalool and a-terpineol sum of nerol and geraniol sum of cis- and rrani-linalool oxides (pyranic and furanic) sum of 3,7-dimethyl-l,5-octadien-3,7-diol and the two 2,7-dimethyl-2,7-octadien-l,6-diol isomers (from Ugliano and Moio 2006, reproduced with permission)...

Figure 5.1a (Continued) octadiene-3,6-diol) (11) hydroxycitronellol (3,7-di methyloctane-l,7-diol) (12) 8-hydroxydihydrolinalool (2,6-dimethyl-7-octene-l,6-diol) (13) 7-hydroxygeraniol (E-3,6-dimethyl-2-octene-l,7-diol) (14) 7-hydro-xynerol (Z-3,6-dimethyl-2-octene-l, 7-diol) (15) cis and trans 8-hydroxy linalool (E- and Z-2,6-dimethyl-2,7-octadiene-l,6-diol) (16) p-menthenediol I (p-menth-l-ene-7,8-diol) (17) E-geranic acid (3,7-dimethyl-2,6-octadienoic acid) (18) E-2,6-dimethyl-6-hydroxyocta-2,7-dienoic acid (19) E- and Z-sobrerol or p-menthenediol II (p-menth-l-ene-6,8-diol) (20) cis and trans rose oxide (21) nerol oxide (22) 2-exo-hydroxy-1,8-cineol (23) 1,8-cineol (24) wine lactone (25) cis and trans 1,8-terpin (26) triol (2,6-dimethyloctane-2,3,6-triol) (27) hotrienol [(5E)-3,5-dimethylocta-l,5,7-trien-3-ol] (28) myrcenol (2-methyl-6-methylene-7-octen-2-ol)...

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