diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate

Base Information

• Chemical Name: diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate
• CAS No.: 623903-02-6
• Molecular Formula: C₁₉H₂₈N₂O₄
• Molecular Weight: 348.442

Synonyms:diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate

Chemical Property of diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate

Chemical Property:

Purity/Quality:

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Technology Process of diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate

There total 2 articles about diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate 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:

3-styryl-5-vinylpyrazolidine-1,2-dicarboxylic acid diethyl ester (623902-96-5) → diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate (623903-02-6)

Guidance literature:

With palladium on activated charcoal; hydrogen; In ethanol; at 22 ℃; for 0.5h;

DOI:10.1021/ja0302228

Reference yield:

styrene (100-42-5,25038-60-2,25247-68-1,28213-80-1,28325-75-9,79637-11-9,9003-53-6) → diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate (623903-02-6)

Guidance literature:

Multi-step reaction with 2 steps

1: chiral Ru catalyst / tetrahydrofuran / 6 h / 22 °C

2: Pd/C; H₂ / ethanol / 0.5 h / 22 °C

With palladium on activated charcoal; chiral Ru catalyst; hydrogen; In tetrahydrofuran; ethanol;

DOI:10.1021/ja0302228

Reference yield:

diethyl (3R,5S)-3-ethyl-5-(2-phenylethyl)pyrazolidine-1,2-dicarboxylate (623903-02-6) → (3R,5S)-3,5-bis(ethoxycarbonylamino)-1-phenylheptane

Guidance literature:

With ammonia; lithium; In tetrahydrofuran; at -78 ℃; for 0.166667h;

DOI:10.1021/ja0302228

upstream raw materials:

3-styryl-5-vinylpyrazolidine-1,2-dicarboxylic acid diethyl ester

styrene

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