(R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ⁵-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one

Base Information

• Chemical Name: (R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ⁵-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one
• CAS No.: 150932-58-4
• Molecular Formula: C₂₄H₃₆N₃O₃P
• Molecular Weight: 445.542

Synonyms:(R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ⁵-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one

Chemical Property of (R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ⁵-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one

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Technology Process of (R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ⁵-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one

There total 3 articles about (R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ⁵-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-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: 51.0%

1-(4-methoxybenzyl)-1,5-dihydro-2H-pyrrol-2-one + (3aR,7aR)-2-crotyloctahydro-1H-1,3-dimethyl-1,3,2-benzadiazaphosphole 2-oxide (150932-41-5) → (R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ5-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one (150932-58-4) + (S)-4-[(E)-(S)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ5-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one

Guidance literature:

With n-butyllithium; In toluene; at -78 ℃;

DOI:10.1021/jo00071a004

Reference yield:

1-(4-methoxybenzyl)-1,5-dihydro-2H-pyrrol-2-one + (3aR,7aR)-2-crotyloctahydro-1H-1,3-dimethyl-1,3,2-benzadiazaphosphole 2-oxide (150932-41-5) → (S)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ5-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one + (R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ5-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one (150932-58-4)

Guidance literature:

With n-butyllithium; In toluene; at -78 ℃; for 0.5h; Title compound not separated from byproducts.;

DOI:10.1021/jo000388g

Reference yield:

(R,R)-N,N'-dimethyl-1,2-diaminocyclohexane (68737-65-5) → (R)-4-[(E)-(R)-3-((3aR,7aR)-1,3-Dimethyl-2-oxo-octahydro-2λ5-benzo[1,3,2]diazaphosphol-2-yl)-1-methyl-allyl]-1-(4-methoxy-benzyl)-pyrrolidin-2-one (150932-58-4)

Guidance literature:

Multi-step reaction with 2 steps

1: 93 percent / Et₃N / benzene / 18 h / 20 °C

2: n-BuLi / toluene / 0.5 h / -78 °C

With n-butyllithium; triethylamine; In toluene; benzene; 1: cyclocondensation / 2: Addition;

DOI:10.1021/jo000388g

upstream raw materials:

(3aR,7aR)-2-crotyloctahydro-1H-1,3-dimethyl-1,3,2-benzadiazaphosphole 2-oxide

(R,R)-N,N'-dimethyl-1,2-diaminocyclohexane

Downstream raw materials:

(R)-4-((R)-2-Hydroxy-1-methyl-ethyl)-1-(4-methoxy-benzyl)-pyrrolidin-2-one

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