2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione

Base Information

Chemical Name:2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione
CAS No.:291774-36-2
Molecular Formula:C₂₈H₃₃N₃O₅
Molecular Weight:491.587
Hs Code.:

Synonyms:2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione

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Chemical Property of 2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione

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Technology Process of 2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione

There total 5 articles about 2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione 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:

: 4-(3-butyl-1,4-dioxo-2,3-diaza-spiro[4.4]non-2-ylmethyl)-benzoyl chloride

: 87-25-2
2-ethoxycarbonylaniline

: 291774-36-2
2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione

Guidance literature:: With triethylamine; In dichloromethane; at 20 ℃; for 2h;
DOI:10.1021/jm9904147

Reference yield:

: 291773-97-2
2-butyl-2,3-diazaspiro[4.4]nonane-1,4-dione

: 291774-36-2
2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione

Guidance literature:: Multi-step reaction with 4 steps

1: 70 percent / K₂CO₃ / acetone / 5 h / 20 °C

2: 89 percent / aq. HCl; AcOH / 10 h / Heating

3: SOCl₂ / CH₂Cl₂ / 20 °C

4: Et₃N / CH₂Cl₂ / 2 h / 20 °C

With hydrogenchloride; thionyl chloride; potassium carbonate; acetic acid; triethylamine; In dichloromethane; acetone; 1: Alkylation / 2: Hydrolysis / 3: Chlorination / 4: Acylation;
DOI:10.1021/jm9904147

Reference yield:

: 291773-88-1
2-benzyl-2,3-diazaspiro[4.4]nonane-1,4-dione

: 291774-36-2
2-butyl-3-[4-(2-carbethoxyphenylaminocarbonyl)benzyl]-2,3-diazaspiro[4.4]nonane-1,4-dione

Guidance literature:: Multi-step reaction with 5 steps

1.1: K₂CO₃ / dimethylformamide / 10 h / 20 °C

1.2: HCOONH₄ / Pd/C / methanol / 4 h / 40 °C

2.1: 70 percent / K₂CO₃ / acetone / 5 h / 20 °C

3.1: 89 percent / aq. HCl; AcOH / 10 h / Heating

4.1: SOCl₂ / CH₂Cl₂ / 20 °C

5.1: Et₃N / CH₂Cl₂ / 2 h / 20 °C

With hydrogenchloride; thionyl chloride; potassium carbonate; acetic acid; triethylamine; In dichloromethane; N,N-dimethyl-formamide; acetone; 1.1: Alkylation / 1.2: Hydrogenolysis / 2.1: Alkylation / 3.1: Hydrolysis / 4.1: Chlorination / 5.1: Acylation;
DOI:10.1021/jm9904147