ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate

Base Information

• Chemical Name: ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate
• CAS No.: 1415034-34-2
• Molecular Formula: C₁₇H₁₃Cl₂N₃O₂
• Molecular Weight: 362.215
• Mol file: 1415034-34-2.mol

Synonyms:ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate

Chemical Property of ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate

There total 5 articles about ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate 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: 86.0%

ethyl 2-hydroxy-2-[1-oxo-1H-pyrrolizin-2(3H)-ylidene]acetate (1415034-31-9) + 2,4-dichlorophenyl hydrazine hydrochloride (5446-18-4) → ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate (1415034-34-2)

Guidance literature:

In ethanol; at 80 ℃; for 48h;

DOI:10.1055/s-0032-1316703

Reference yield: 86.0%

ethyl 2-hydroxy-2-[8-oxo-5,6-dihydroindolizin-7(8H)-ylidene]acetate (1415034-41-1) + 2,4-dichlorophenyl hydrazine hydrochloride (5446-18-4) → ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate (1415034-34-2)

Guidance literature:

In ethanol; at 80 ℃; for 8h;

DOI:10.1055/s-0032-1316703

Reference yield:

1,2-dihydro-1-pyrrolizinone (17266-64-7) → ethyl 1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate (1415034-34-2)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium; ethanol / 1 h / 20 °C

2: ethanol / 48 h / 80 °C

With ethanol; sodium; In ethanol; 1: |Claisen Condensation;

DOI:10.1055/s-0032-1316703

upstream raw materials:

1,2-dihydro-1-pyrrolizinone

ethyl 2-hydroxy-2-[1-oxo-1H-pyrrolizin-2(3H)-ylidene]acetate

2,4-dichlorophenyl hydrazine hydrochloride

ethyl 2-hydroxy-2-[8-oxo-5,6-dihydroindolizin-7(8H)-ylidene]acetate

Downstream raw materials:

ethyl 6-chloro-1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylate

6-chloro-1-(2,4-dichlorophenyl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxylic acid

6-chloro-1-(2,4-dichlorophenyl)-N-(piperidin-1-yl)-1,4-dihydropyrazolo[3,4-a]pyrrolizine-3-carboxamide