3-ethyl-2,2-dimethyl-3-heptene

Step 5 The full name is 3-ethyl-2,2-dimethyl-3-heptene. 

Dimethyl-2-heptanol 2,6-Dimethyl-4-heptanol 3,5-Dimethyl-4-heptanol 2,6-Dimethyl-4-heptanone 2,6-Dim ethyl-5-heptenal... 

Abbreviations aapy, 2-acetamidopyridine Aik, alkyl AN, acetoniuile Ar, aryl Bu, butyl cod, 1,5-cyclooctadiene COE, cyclooctene COT, cyclooctatetraene Cp, cyclopentadienyl Cp , penta-methylcyclopentadienyl Cy, cyclohexyl DME, 1,2-dimethoxyethane DME, dimethylformamide DMSO, dimethyl sulfoxide dmpe, dimethylphosphinoethane dppe, diphenylphosphinoethane dppm, diphenylphosphinomethane dppp, diphenylphosphinopropane Et, ethyl Ec, feirocenyl ind, inda-zolyl Me, methyl Mes, mesitylene nb, norbomene orbicyclo[2.2.1]heptene nbd, 2,5-norbomadiene OTf, uiflate Ph, phenyl PPN, bis(triphenylphosphoranylidene)ammonium Pi , propyl py, pyridine pz, pyrazolate pz, substituted pyi azolate pz , 3,5-dimethylpyrazolate quin, quinolin-8-olate solv, solvent tfb, teti afluorobenzobaiTelene THE, tetrahydrofuran THT, tetrahydrothiophene tmeda, teti amethylethylenediamine Tol, tolyl Tp, HB(C3H3N2)3 Tp , HB(3,5-Me2C3HN2)3 Tp, substituted hydrotiis(pyrazol-l-yl)borate Ts, tosyl tz, 1,2,4-triazolate Vin, vinyl. 

RH Ethyl linoleate 3-Heptene, 2,6-dimethyl- Benzene, 1,4-diisopropyl- Cumene... 

In a thorough investigation of thiolate additions to acceptor-substituted enynes, Shus-trova and coworkers180,181 were able to demonstrate that the ratio of 1,4- and 1,6-addition depends on the reaction conditions, in particular on the duration of the experiment (equation 75) whereas only 1,4-adduct was observed in the reaction of methyl 6,6-dimethyl-2-hepten-4-ynoate and ethyl thiolate after 1 h, the product distribution shifted towards the 1,6-addition product with increasing reaction time, the latter being the sole... 

C13H22O2, Mr 210.32 is a mixture of isomers, bpo kPa 102 °C, ng 1.4626, a colorless to pale yellow liquid with rosy, spicy, fruity, and woody odor. For its preparation 3,6-dimethyl-6-hepten-2-one and 7-methyl-6-octen-3-one are treated with ethyl diethylphosphoryl acetate to give a mixture of octadienoic acid esters. Cyclization with sulfuric/formic acid yields the title compounds as a mixture with isomers [134]. With its complex odor picture it is used in fine fragrances for shading. 

B) Western balsam bark beetle, Dryocoetes confusus formation of endo-brevicomin [(1 F ,5S,7S)-7-ethyl-5-methyl-6,8-dioxabicyclo[3.2.1 ]octane] from ( )-6-nonen-2-one (Vanderwel et a/., 1992a) (C) Spruce beetle, Dendroctonus rufipennis formation of frontalin [(1S, 5fl)-(-)-1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane] from 6-methyl-6-hepten-2-one (Perez ef a/., 1996 Francke etai, 1995 Francke and Schulz, 1999) (D) European elm bark beetle, Scolytus multistriatus hypothetical formation of oc-multistriatin [(1 S,2F ,4S,5F )-(-)-2,4-dimethyl-5-ethyl-6,8-dioxabicyclo[3.2.1]octane] from 4,6-dimethyl-7-octen-3-one (Francke and Schulz, 1999) and E The colored... 

Aza-bicyclo[3.2.1 oct-2-en 2-Carboxy-8-methyl- V/Id, 394 Bicyclo[2.2.1 hepten 5,6-Dimethyl-5-nitro- X/l, 397f. 5-Ethyl-5-nitro- X/l, 397f. Cyclobuten 2-Diethylamino-3,4-dioxo-1-methyl-E15/2. 1427 (F/Cl -> Oxo)... 

C8H16 6-methyl-cis-2-heptene 66225-18-1 159.34 13.155 2 14992 C8H16 3,3-dimethyl-2-ethyl-1 -butene 18231-53-3 166.12 6.472 2... 

Another very interesting example from the same group is the use of Sn-Beta for the synthesis of melonal (2,6-dimethyl-5-hepten-l-al), a fragrance that is produced industrially by a Darzens reaction from 6-methyl-5-hepten-2-one, with ethyl chlor-oacetate as reagent. A novel halogen-free synthesis involves the chemoselective... 

An exchange resin sulfonic acid has also been used as catalyst in a very elegant ketone condensation Lorette948 obtained mesityl oxide in almost 80% yield by passing acetone vapors over Dowex 50 ethyl methyl ketone gives a mixture of the two isomers (5-methyl-4-hepten-3-one and 3,4-dimethyl-... 

It should be noted that CH2 transfer to olefins using monohalomethylmer-cury compounds proceeds by a concerted mechanism similar to that of the Simmons-Smith reaction . Bis(bromomethyl)mercury is stable in refluxing benzene only in the presence of a CH2 acceptor does CH2 extrusion from the mercurial take place.-The nature of the olefin has a large effect on the rate of the reaction (2,3-dimethyl-2-pentene, 26 3-ethyl-2-pentene. 4.2 cyclohexene, 1.0 l-heptene, 0.225). 

CAS 128-51-8 EINECS/ELINCS 204-891-9 Synonyms 2-(2-Acetoxyethyl)-6,6-dimethylnorpin-2-ene 6,6-Dimethylbicyclo [3.1.1] hept-2-ene-2-ethanol acetate 6,6-Dimethylbicyclo (3.1.1.)-2-heptene-2-ethyl acetate 2-(6,6-Dimethylbicyclo [3,1,1] hept-2-en-2-yl) ethyl acetate 6,6-Dimethyl-2-norpinene-2-ethanol acetate Lignyl acetate Nopol acetate 2-Norpinene-2-ethanol, 6,6-dimethyl-, acetate 2-Pinene-10-methyl acetate Classification Organic compd. 

Dill (Anethum graveolens) seed oil 2,4-Dimethylacetophenone 2,6-Dimethyl-5-heptenal Dodecene-1 Elemi gum Ethyl anthranilate Ethyl butyrate Ethyl cinnamate Ethyl isovalerate Ethyl pelarqonate... 

Cyclic alkenes are known compounds. As with cyclic alkanes, the parent name for cyclic alkenes is based on the number of carbon atoms in the ring derived from the analogous linear alkene, but the prefix cyclo is added to the name. The six-carbon cyclic molecule that contains a C=C unit is called cyclohexene (4). Substituents are named in the usual manner, and one carbon of the C=C unit must be Cl. The choice of which C=C carbon becomes Cl is dictated by giving the substituents the lowest number. Compound 5 is a cycloheptene, but the substituents can be numbered 6-ethyl-3,6-dimethyl- or 4-ethyl-4,7-di-methyl. The smaller numbers dictates the priority, which also give the ethyl group the lower number, and 5 is 4-ethyl-4,7-dimethylcycloheptene. Note that the 1-heptene is unnecessary in the name... 

Ethyl-3,5-dimethyl-3-heptene [103984-98-1] Table 1. Experimental value with uncertainty. 

Racemic isohumulone is prepared from the key product 2-methyl-2-penten-4-yne, which is obtained by a 1,4-elimination reaction from 1-bromo-4-methylpenta-1,2-diene, in the presence of copper(l) cyanide (85). Addition of the hydrocarbon to ethyl pyruvate, followed by hydrolysis, leads to 2,6-dimethyl-2-hydroxy-5-hepten-3-yne acid. The corresponding acid chloride is added to ethyl 3-oxo-5-methylhexanoate in the presence of magnesium methylate. The reaction product cyclizes in basic medium to... 

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