(2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]

Base Information

Chemical Name:(2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]
CAS No.:878722-86-2
Molecular Formula:C₂₁H₂₀N₂O₃
Molecular Weight:348.401
Hs Code.:

Synonyms:(2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]

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Chemical Property of (2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]

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Technology Process of (2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]

There total 4 articles about (2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-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: 21.0%

: 878722-66-8
(2R,5S,7R,1'S)-1-aza-7-(1'-cyano-1'-phenylmethyl)-7-(ethoxycarbonyl)-3-oxo-8-oxa-2-phenylbicyclo[3.3.0]octane

: 878722-86-2
(2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]

Guidance literature:: (2R,5S,7R,1'S)-1-aza-7-(1'-cyano-1'-phenylmethyl)-7-(ethoxycarbonyl)-3-oxo-8-oxa-2-phenylbicyclo[3.3.0]octane; With cobalt(II) chloride hexahydrate; In ethanol; for 0.0833333h;

With sodium tetrahydroborate; In ethanol; at 20 ℃; for 16h;
DOI:10.1039/c1ob05708a

Reference yield:

: 103201-79-2,1820583-17-2
(3R,7aS)-3-phenyl-tetrahydro-pyrrolo[1,2-c]oxazol-5-one

: 878722-86-2
(2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]

Guidance literature:: Multi-step reaction with 3 steps

1.1: sodium hydride / tetrahydrofuran; mineral oil / 1 h / 20 °C

1.2: 16 h / Reflux

2.1: sodium hydride / tetrahydrofuran / 0 - 20 °C / Inert atmosphere

2.2: 16 h / Inert atmosphere

3.1: cobalt(II) chloride hexahydrate / ethanol / 0.08 h

3.2: 16 h / 20 °C

With cobalt(II) chloride hexahydrate; sodium hydride; In tetrahydrofuran; ethanol; mineral oil;
DOI:10.1039/c1ob05708a

Reference yield:

: 5798-79-8
bromo-phenyl-acetonitrile

: 878722-86-2
(2R,5S,7S,4'S)-(4'-phenyl)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]

Guidance literature:: Multi-step reaction with 2 steps

1.1: sodium hydride / tetrahydrofuran / 0 - 20 °C / Inert atmosphere

1.2: 16 h / Inert atmosphere

2.1: cobalt(II) chloride hexahydrate / ethanol / 0.08 h

2.2: 16 h / 20 °C

With cobalt(II) chloride hexahydrate; sodium hydride; In tetrahydrofuran; ethanol;
DOI:10.1039/c1ob05708a