ethyl 2-phenyl-1,10-diazabenzazulene-3-carboxylate

Base Information

• Chemical Name: ethyl 2-phenyl-1,10-diazabenz
• Molecular Formula: C₂₁H₁₆N₂O₂
• Molecular Weight: 328.37

Synonyms:

Chemical Property of ethyl 2-phenyl-1,10-diazabenz

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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MSDS Files:

Useful:

There total 4 articles about ethyl 2-phenyl-1,10-diazabenzazulene-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: 17.0%

ethyl 3-oxo-3-phenylpropionate (94-02-0) + 2-amino-1-azaazulene-3-carboaldehyde (140139-37-3) → 3-Benzoyl-1H-1,10-diaza-benzo[a]azulen-2-one (140139-54-4) + ethyl 2-phenyl-1,10-diazabenzazulene-3-carboxylate (140139-59-9)

Guidance literature:

With pyrrolidine; In ethanol; for 15h; Heating;

DOI:10.1246/bcsj.65.340

Reference yield:

2-aminocycloheptapyrrole (3336-74-1) → ethyl 2-phenyl-1,10-diazabenzazulene-3-carboxylate (140139-59-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 94 percent / phosphoryl chloride / a) 80 deg C, 8 h, b) RT, 1 d

2: 41 percent / pyrrolidine / ethanol / 15 h / Heating

With pyrrolidine; trichlorophosphate; In ethanol;

DOI:10.1246/bcsj.65.340

Reference yield:

1-Cyclohepta[b]pyrrol-2-yl-pyridinium; chloride (140139-38-4) → ethyl 2-phenyl-1,10-diazabenzazulene-3-carboxylate (140139-59-9)

Guidance literature:

Multi-step reaction with 3 steps

1: 96 percent / piperidine / ethanol / 24 h / Ambient temperature

2: 94 percent / phosphoryl chloride / a) 80 deg C, 8 h, b) RT, 1 d

3: 41 percent / pyrrolidine / ethanol / 15 h / Heating

With pyrrolidine; piperidine; trichlorophosphate; In ethanol;

DOI:10.1246/bcsj.65.340

upstream raw materials:

ethyl 3-oxo-3-phenylpropionate

2-amino-1-azaazulene-3-carboaldehyde

2-aminocycloheptapyrrole

1-Cyclohepta[b]pyrrol-2-yl-pyridinium; chloride

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