6- Methyl-cis-3-heptene

C8H15N02 methyl 1 -methyl-4-piperidinecarboxylate 1690-75-1 461.98 40.244 2 14912 C8H16 6-methyl-cis-2-heptene 66225-18-1 390.15 33.365 1,2... 

C8H16 6-methyl-1-heptene 5026-76-6 162.66 11.673 2 14983 C8H16 4-methyl-3-ethyI-cis-2-pentene 42067-48-1 145.38 11.845 2... 

A correlation of the observed cis/trans-141 ratios with the yields of 2-heptenes 143 supports the hypothesis that the anion 138 cyclizes. 2-Heptenes are formed from (l-methyl-5-hexenyl)sodium 138 through an intramolecular 1,4-proton transfer that competes with cyclization to give 142 (Scheme 8)97). Thus, cyclizations of 1-methyl-5-hexenyl anions and radicals can be distinguished, since they occur with different cis/trans ratios and since products of anion cyclizations are accompanied by those of the 1,4-proton transfer. 

Very recently, Garst and coworkers 100) have provided a means to suppress the cyclization of (l-methyl-5-hexenyl)sodium with t-butyl amine101 . t-Butyl amine is a sufficiently reactive proton donor to compete successfully with the anion cyclization 138 - cis/trans-139 and the intramolecular 1,4-proton transfer 138 -> 142, leaving 1-heptene 140 as well as cis- and tra -l, 2-dimethylcyclopentane cis,trans-141 formation through radical cyclization only. For sodium metal reactions excess t-butyl amine-nearly eliminates cis,trans-141 suggesting that radical cyclization is negligible. For the Na + N" reaction, 2-heptenes 143 are eliminated by added t-butyl amine, but the yields of cis,trans-141 are merely diminished. As expected, the cis/trans... 

In addition to propylene, other nonconjugated olefins have been copolymerized with CO using enantiopure palladium catalysts. Allylbenzene, 1-butene, 1-heptene, 4-methyl-l-pentene, and cis-2-butene [84,85] as well as hydroxy- and carboxylic acid-functionalized monomers [87] have been polymerized to give optically active polymers. Waymouth, Takaya and Nozaki have recently reported the enantioselective cyclocopolymerization of 1,5-hexadiene and CO [88,89]. 

Heptanone 4-Heptanone cis-4-Hepten-1-al Heptyl acetate Heptyl alcohol flavoring agent, synthetic pharmaceuticals Heptyl butyrate Heptyl cinnamate Heptyl formate Heptyl isobutyrate Heptyl octanoate y-Hexalactone Hexanal 3,4-Hexanedione 3-Hexanol 3-Hexanone 2-Hexenol cis-3-Hexenol trans-2-Hexenyl acetate 3-Hexenyl 2-methyl butyrate cis-3-Hexenyl phenylacetate Hexyl acetate iZ-Hexyl-4-acetoxytetrahydrofuran Hexyl alcohol Hexyl 2-butenoate Hexyl butyrate a-Hexylcinnamaldehyde Hexyl formate Hexyl hexanoate 2-Hexylidene cyclopentanone Hexyl isobutyrate... 

Cl4H2iClOe, Methyl (5S)-4-chloro-3,4-didesoxy-1,2 6,7-di-O-isopro-pylidene-a-D-erythro 3-hepten-5-uio-(1,5)-pyrannoside, 46B, 322 Cl4H21NO5, 4-Carboxy-l,2,4,8 tetramethyl-3,9-dioxatricyclo-[5.2.1.0 ]decane-8-carboxamide, 43B, 399 C14H2 2O2 f cis-8-t-Butyl-3-methylene-l-oxaspiro[4.5]decan-2-one, 44B, 293... 

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