1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene

Base Information

• Chemical Name: 1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene
• CAS No.: 157896-19-0
• Molecular Formula: C₂₇H₃₂O₂
• Molecular Weight: 388.55

Synonyms:1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene

Chemical Property of 1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene

Chemical Property:

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Technology Process of 1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene

There total 1 articles about 1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene 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: 49.0%

(-)-menthol (2216-51-5) + 1-ethoxycarbonyl-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene → 1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene (157896-19-0)

Guidance literature:

With toluene-4-sulfonic acid; In xylene; for 72h; Heating;

DOI:10.1016/0022-328X(94)80131-2

Reference yield: 26.0%

chlorotris(triphenylphosphine)cobalt(I) (26305-75-9) + diphenyl acetylene (501-65-5) + 1-<(1R,2S,5R)-menthoxycarbonyl>-2-methyl-4-(2-naphthyl)-1,3-cyclopentadiene (157896-19-0) → 1-{(1R,2S,5R)-menthoxycarbonyl}-2-methyl-4-(2-naphtyl)-1,3-cyclopentadiene Co (C4(C6H5)4) + 1-{(1R,2S,5R)-menthoxycarbonyl}-2-methyl-4-(2-naphtyl)-1,3-cyclopentadiene Co (C4(C6H5)4)

Guidance literature:

With Na; In tetrahydrofuran; toluene; Ar; after stirring for a few min, Cp1Na in THF added; refluxed for 5 h;; chromd. (Al2O3, benzene, then SiO2, hexane/benzene); recrystd. from benzene/hexane and benzene/EtOH; elem. anal.;;

DOI:10.1016/0022-328X(94)80131-2

upstream raw materials:

(-)-menthol

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