ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

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Chemical Name:ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate
CAS No.:157331-40-3
Molecular Formula:C₂₂H₂₅NO₅S
Molecular Weight:415.51
Hs Code.:

Synonyms:ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

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Chemical Property of ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

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Technology Process of ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

There total 4 articles about ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate 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: 84.0%

: 157331-38-9
ethyl (αξ,βξ)-β-hydroxy-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

: 157331-40-3
ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

Guidance literature:: With manganese(IV) oxide; In dichloromethane; for 2h; Heating;
DOI:10.1248/cpb.42.846

Reference yield:

: 88075-95-0
1-(phenylsulfonyl)-1H-pyrrole-3-carbaldehyde

: 157331-40-3
ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

Guidance literature:: Multi-step reaction with 2 steps

1: 1.) lithium diisopropylamide / 1.) THF, -82 deg C to -69 deg C, 45 min, 2.) THF, -69 deg C to -59 deg C, 1 h

2: 84 percent / MnO₂ / CH₂Cl₂ / 2 h / Heating

With manganese(IV) oxide; lithium diisopropyl amide; In dichloromethane;
DOI:10.1248/cpb.42.846

Reference yield:

: 157331-37-8
ethyl α-methyl-2-methylene-1-cyclopentaneacetate

: 157331-40-3
ethyl (αξ)-α-methyl-α-<(ξ)-2-methylenecyclopentyl>-β-oxo-1-(phenylsulfonyl)-1H-pyrrole-3-propanoate

Guidance literature:: Multi-step reaction with 2 steps

1: 1.) lithium diisopropylamide / 1.) THF, -82 deg C to -69 deg C, 45 min, 2.) THF, -69 deg C to -59 deg C, 1 h

2: 84 percent / MnO₂ / CH₂Cl₂ / 2 h / Heating

With manganese(IV) oxide; lithium diisopropyl amide; In dichloromethane;
DOI:10.1248/cpb.42.846