methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate

Base Information

Chemical Name:methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate
CAS No.:187266-07-5
Molecular Formula:C₁₂H₁₄O₃
Molecular Weight:206.241
Hs Code.:

Synonyms:methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate

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Chemical Property of methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate

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Technology Process of methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate

There total 5 articles about methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-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: 91.0%

: 187266-02-0
(1R,2S)-2-Ethynyl-2-hydroxy-1,3-dimethyl-cyclohex-3-enecarboxylic acid methyl ester

: 187266-07-5
methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate

Guidance literature:: With dipyridinium dichromate; hydroquinone; In dichloromethane; for 7h; Heating;
DOI:10.1002/jlac.199719970214

Reference yield: 91.0%

: methyl (+)-(1R,2R)-2-ethynyl-2-hydroxy-1,3-dimethylcyclohex-3-ene-1-carboxylate

: 187266-07-5
methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate

Guidance literature:: With dipyridinium dichromate; hydroquinone; In dichloromethane; for 7h; Reflux; Inert atmosphere;
DOI:10.3762/bjoc.7.54

Reference yield:

: 17422-12-7
methyl 2-methyl-3-oxopentanoate

: 187266-07-5
methyl (+)-(1R)-2-ethynyl-1,3-dimethyl-4-oxocyclohex-2-ene-1-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1: 1.) NaOMe, 2.) HCl / 1.) MeoH, 20 deg C, 12 h, 2.) 20 deg C, 12 h

2: 79 percent / tetrahydrofuran / 1 h / 20 °C

3: 91 percent / PDC, hydroquinone / CH₂Cl₂ / 7 h / Heating

With hydrogenchloride; dipyridinium dichromate; sodium methylate; hydroquinone; In tetrahydrofuran; dichloromethane;
DOI:10.1002/jlac.199719970214