Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

Base Information

Chemical Name:Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate
CAS No.:331822-03-8
Molecular Formula:C₂₃H₃₀O₄
Molecular Weight:370.489
Hs Code.:

Synonyms:Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

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Chemical Property of Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

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Technology Process of Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

There total 8 articles about Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate 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: 74.0%

: 917-54-4
methyllithium

: 163041-10-9
Methyl 2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

: 331822-03-8
Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

Guidance literature:: methyllithium; With copper(l) iodide; In diethyl ether; at -10 ℃;

Methyl 2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate; In tetrahydrofuran; diethyl ether; at -42 ℃; for 1h; Further stages.;
DOI:10.1039/b005617k

Reference yield: 63.0%

: 15681-48-8
lithium dimethylcuprate

: 163041-10-9
Methyl 2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

: 331822-03-8
Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

Guidance literature:: In tetrahydrofuran; diethyl ether; at -10 ℃; for 0.75h;
DOI:10.1039/c39950000403

Reference yield:

: 59633-89-5
3-oxo-5-(2,6,6-trimethyl-cyclohex-1-enyl)-pentanoic acid methyl ester

: 331822-03-8
Methyl 2,3-dihydro-2-methyl-2-[2-(2,6,6-trimethylcyclohex-1-en-1-yl)ethyl]-4-oxo-4H-1-benzopyran-3-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: NaH / toluene / 1 h / 50 °C

1.2: 89 percent / toluene / 72 h / 110 °C

2.1: CuI / diethyl ether / -10 °C

2.2: 74 percent / diethyl ether; tetrahydrofuran / 1 h / -42 °C

With copper(l) iodide; sodium hydride; In diethyl ether; toluene;
DOI:10.1039/b005617k