Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester

Base Information

Chemical Name:Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester
CAS No.:132749-04-3
Molecular Formula:C₂₈H₂₆N₂O₄
Molecular Weight:454.525
Hs Code.:

Synonyms:Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester

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Chemical Property of Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester

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Technology Process of Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester

There total 4 articles about Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl 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: 55.0%

: 117-34-0
2,2-diphenylacetic acid

: 132714-97-7
(7R,8aS)-2-benzyl-7-hydroxyhexahydropyrrolo[1,2-a]pyrazine-1,4-dione

: 132749-04-3
Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester

Guidance literature:: With triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; for 16h;

Reference yield:

: 40216-83-9
L-4-hydroxyproline methyl ester hydrochloride

: 132749-04-3
Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 87 percent / benzene / 2 h / Heating

2: 63 percent / triethylamine / 2-ethoxy-ethanol / 48 h / Heating

3: 55 percent / PPh₃, diethyl azodicarboxylate / tetrahydrofuran / 16 h

With triethylamine; triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; 2-ethoxy-ethanol; benzene;

Reference yield:

: 51-35-4,30724-02-8
4R-4-hydroxyproline

: 132749-04-3
Diphenyl-acetic acid (7S,8aS)-2-benzyl-1,4-dioxo-octahydro-pyrrolo[1,2-a]pyrazin-7-yl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 95 percent / SOCl₂ / 4 h / Ambient temperature

2: 87 percent / benzene / 2 h / Heating

3: 63 percent / triethylamine / 2-ethoxy-ethanol / 48 h / Heating

4: 55 percent / PPh₃, diethyl azodicarboxylate / tetrahydrofuran / 16 h

With thionyl chloride; triethylamine; triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; 2-ethoxy-ethanol; benzene;