ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate

Base Information

Chemical Name:ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate
CAS No.:1346253-69-7
Molecular Formula:C₂₄H₁₉N₃O₃
Molecular Weight:397.433
Hs Code.:

Synonyms:ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate

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Technology Process of ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate

There total 4 articles about ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-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: 74.0%

: 14369-81-4
ethyl 2,3-butadienoate

: 59762-59-3
2-(1-benzyl-2-oxo-1,2-dihydro-indol-3-ylidene)malononitrile

: 1346253-69-7
ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate

Guidance literature:: With triphenylphosphine; In toluene; at 20 ℃; for 5h; regioselective reaction;
DOI:10.1055/s-0030-1261188

Reference yield:

: 100-39-0
benzyl bromide

: 1346253-69-7
ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 0 °C / Inert atmosphere

1.2: 1 h / Inert atmosphere

2.1: piperidine / ethanol / Reflux; Inert atmosphere

3.1: triphenylphosphine / toluene / 5 h / 20 °C

With piperidine; sodium hydride; triphenylphosphine; In ethanol; N,N-dimethyl-formamide; toluene; mineral oil;
DOI:10.1055/s-0030-1261188

Reference yield:

: 1217-89-6
1-benzylisatin

: 1346253-69-7
ethyl 1'-benzyl-5,5-dicyano-2'-oxospiro[cyclopent[2]ene-1,3'-indoline]-2-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1: piperidine / ethanol / Reflux; Inert atmosphere

2: triphenylphosphine / toluene / 5 h / 20 °C

With piperidine; triphenylphosphine; In ethanol; toluene;
DOI:10.1055/s-0030-1261188