3-Hexene, trans

CGH10 3-METHYL-1- -30.771 3.4337E-01 3.2419E-05 74.77 254 C6H12 2-HEXENE, TRANS -56.244 4.3026E-01 4.4958E-05 76.44... 

C5H10 2-METHYL-2- -44.552 3.3614E-01 4.0962E-05 59.66 256 C6H12 3-HEXENE, TRANS -56.854 4.3669E-01 4.3504E-05 77.61... 

With (Me2Si)(C5Me4)(C5H3R )LnE(TMS)2 as catalyst precursors, TOE are, under identical conditions, ca. 10 times those of the Cp 2Ln-R catalysts presented above. In the case of 2-amino-5-hexene, trans-2,5-dimethylpyrrolidine is obtained with > 95% diastereoselectivity [136]. 

HEXENE cis-2-HEXENE trans-2-HEXENE cis-3-HEXENE trans-3-HEXENE METHYLCYCLOPENTANE... 

Problem 6.6 Write structural formulas for (a) ( )-2-methyl-3-hexene trans), b) (S)-3-chloro-l-pentene, (c) (R),(Z)-2-chloro-3-heptene (c/s). 

The hydroformylation of trflns-3-octene at room temperature using the (non-encapsulated) rhodium catalyst based on tris(weta-pyridyl)phosphine afforded 2-ethylheptana] and 2-propylhexanal in exactly a 1 1 ratio. The encapsulated catalyst provided an unprecedented selectivity for 2-propylhexanal of 75% (Scheme 8.3). Again the selectivity is largely retained at 40 °C whereas at 80 °C the isomerization side reaction prohibits the selective formation of aldehydes. Similar regioselectivities were obtained in the hydroformylation of frflns-2-hexene, trans-2-nonene and trans-3-nonene at 25 °C. 

Temp. Dow (megitriul.) C-Y allies for hexenes trans-2- as-2- Irans- 3- cfs-3- ... 

In order to clarify the stereochemistry of the epoxidation of 2 hexene, the reaction was carried out on photoirradiated Ti02 powder (Ishihara, PT-101) using trans-2-hexene or cz s-2-hexene as the starting material. From trans-2-hexene, trans-2,3-epoxyhexane was obtained as the main product with the ratio between trans and cis-2,3-epoxyhexane being 98.4 to 1.6 (Scheme 11.1). 

Fig. 11.7 Comparison of the photocatalytic activities of different Ti02 powders for producing trans-2,3-epoxyhexane and cis-2,3 -epoxyhexane from 2-hexene (trans/cis = 1.7). The reactions were performed by photoirradiation for 19 h in pure 2-hexene suspended with TiQ2 powder under a stream of oxygen. The crystal structures and surface areas are listed underneath the graph. The main crystalline structure of each TiD2 powder is denoted by A (anatase) and F (rutile). The ratio trans/cis epoxyhexane produced photocatalytically...

Answer five (f-hexene, cis-2-hexene, tra /s-2-hexene, cis-3-hexene, trans-3-hexene)... 

Hex-3-enal. See 3-Hexenal Hex-3(trans)-enal. See trans-3-Hexenal (E)-2-Hexenal. See trans-2-Hexenal (E)-Hex-3-enal. See trans-3-Hexenal n-Hex-trans-2-enal. See trans-2-Hexenal trans-2-Hexenal... 

Synonyms Hex-3(trans)-enal (E)-Hex-3-enal Hexenal, trans-3-... 

Hexenal, trans-3-. See trans-3-Hexenal Hexene. Seel-Hexene 1-Hexene... 

Hexanol 3-Hexenal trans-2-Hexenal trans-3-Hexenal 2-Hexenol... 

Hexenal trans-2-Hexenal Mesityl oxide Methyl pentynol... 

Cyclization proceeded in nearly 100% selectivity in the case of thermal reaction of butadiene (1 ), yielding 4-vinylcyclohexene (VCH) for the first step and ethylene, cyclohexene, cyclohexa-diene, and benzene in the secondary steps. Similar highly selective cyclizations were observed for the reactions between butadiene and ethylene, propylene, 1-butene, cis-2-butene, trans-2-butene or isobutylene (1), yielding cyclohexene (HCH), 4-methyl-cyclohexene (MCH), 4-ethylcyclohexene, cis-4,5-dimethylcyclo-hexene, trans-4,5-dimethyIcyclohexene or 4,4-dimethylcyclohexene, respectively. Based on the above information, it can be said that butadiene plays an important role in the formation of cyclic compounds in pyrolysis conditions. 

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