(1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one

Base Information

• Chemical Name: (1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one
• CAS No.: 126503-20-6
• Molecular Formula: C₁₅H₁₉NO₃
• Molecular Weight: 261.321
• Mol file: 126503-20-6.mol

Synonyms:(1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one

Chemical Property of (1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one

There total 3 articles about (1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one 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:

piperidine (110-89-4) → (1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one (126503-20-6)

Guidance literature:

Multi-step reaction with 3 steps

1: 93 percent / tetrahydrofuran / 1) 0 deg C, 10 min, 2) to RT, 30 min

2: 1) TMEDA, s-BuLi / 1) diethyl ether, -78 deg C, 3 h, 2) diethyl ether, to RT

3: 1) TMEDA, s-BuLi

With N,N,N,N,-tetramethylethylenediamine; sec.-butyllithium; In tetrahydrofuran;

DOI:10.1021/jo00057a024

Reference yield:

tert-butyl 2-methylpiperidine-1-carboxylate (126503-04-6) + 4-methoxy-benzaldehyde (123-11-5) → (1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one (126503-20-6) + (2R,6S)-2-[(S)-Hydroxy-(4-methoxy-phenyl)-methyl]-6-methyl-piperidine-1-carboxylic acid tert-butyl ester (126503-19-3,146388-36-5)

Guidance literature:

With N,N,N,N,-tetramethylethylenediamine; sec.-butyllithium; Yield given. Multistep reaction. Yields of byproduct given; 1.) ether, -20 deg C; 2.) ether, -78 deg C to r.t.;

DOI:10.1021/jo00296a008

Reference yield:

t-butyl piperidinecarboxylate (75844-69-8) → (1R,5S,8aR)-1-(4-Methoxy-phenyl)-5-methyl-hexahydro-oxazolo[3,4-a]pyridin-3-one (126503-20-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 1) TMEDA, s-BuLi / 1) diethyl ether, -78 deg C, 3 h, 2) diethyl ether, to RT

2: 1) TMEDA, s-BuLi

With N,N,N,N,-tetramethylethylenediamine; sec.-butyllithium;

DOI:10.1021/jo00057a024

upstream raw materials:

tert-butyl 2-methylpiperidine-1-carboxylate

4-methoxy-benzaldehyde

piperidine

t-butyl piperidinecarboxylate

Downstream raw materials:

(S)-(4-Methoxy-phenyl)-((2S,6R)-6-methyl-piperidin-2-yl)-methanol