5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

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Chemical Name:5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester
CAS No.:210115-96-1
Molecular Formula:C₁₉H₂₈O₂
Molecular Weight:288.43
Hs Code.:

Synonyms:5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

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Chemical Property of 5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

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Technology Process of 5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

There total 4 articles about 5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 29.8%

: 210115-95-0
5-(5(R)-isopropenyl-2-methyl-1-oxo-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

: 210115-96-1
5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

Guidance literature:: In tetrahydrofuran; toluene; at 0 ℃; for 17h;
DOI:10.1007/PL00024627

Reference yield:

: 6485-40-1,2244-16-8
(R)-Carvone

: 210115-96-1
5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: cyclohexylisopropylamine, 1.6 M nBuLi / tetrahydrofuran; hexane / 16 h / Heating

2: aq. H₂SO₄ / diethyl ether / 48 h / Ambient temperature

3: 15.1 percent / 1.0 M (Me₃Si)2NNa / 18-crown-6 / tetrahydrofuran / 4 h / -75 °C

4: 29.8 percent / tetrahydrofuran; toluene / 17 h / 0 °C

With n-butyllithium; sulfuric acid; N-cyclohexylisopropylamine; sodium hexamethyldisilazane; 18-crown-6 ether; In tetrahydrofuran; diethyl ether; hexane; toluene;
DOI:10.1007/PL00024627

Reference yield:

: 210115-93-8
6-[2-(1,3-dioxolan-2-yl)ethyl]-5(R)-isopropenyl-2-methyl-2-cyclohexen-1-one

: 210115-96-1
5-(5(R)-isopropenyl-1-methylidene-2-methyl-2-cyclohexen-6(S)-yl)-2-methyl-2(Z)-pentenoic acid ethyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: aq. H₂SO₄ / diethyl ether / 48 h / Ambient temperature

2: 15.1 percent / 1.0 M (Me₃Si)2NNa / 18-crown-6 / tetrahydrofuran / 4 h / -75 °C

3: 29.8 percent / tetrahydrofuran; toluene / 17 h / 0 °C

With sulfuric acid; sodium hexamethyldisilazane; 18-crown-6 ether; In tetrahydrofuran; diethyl ether; toluene;
DOI:10.1007/PL00024627