2,3,5,6-1H,4H-Tetrahydro-9-(3-pyridyl)quinolizino[9,9a,1-gh]coumarin

Base Information

• Chemical Name: 2,3,5,6-1H,4H-Tetrahydro-9-(3-pyridyl)quinolizino[9,9a,1-gh]coumarin
• CAS No.: 87349-92-6
• Molecular Formula: C₂₀H₁₈N₂O₂
• Molecular Weight: 318.375
• Mol file: 87349-92-6.mol

Synonyms:Coumarin510

Chemical Property of 2,3,5,6-1H,4H-Tetrahydro-9-(3-pyridyl)quinolizino[9,9a,1-gh]coumarin

Chemical Property:

• Melting Point: 163.0 to 167.0 °C
• Boiling Point: 596.9±50.0 °C(Predicted)
• PKA: 5.44±0.40(Predicted)
• PSA: 46.34000
• Density: 1.35±0.1 g/cm3(Predicted)
• LogP: 3.61880

Purity/Quality:

97% ^*data from raw suppliers

Coumarin 510 ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2,3,5,6-1H,4H-Tetrahydro-9-(3-pyridyl)quinolizino[9,9a,1-gh]coumarin

There total 2 articles about 2,3,5,6-1H,4H-Tetrahydro-9-(3-pyridyl)quinolizino[9,9a,1-gh]coumarin 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: 61.0%

pyridin-3-yl-acetic acid ethyl ester (39931-77-6) + 9-formyl-8-hydroxyjulolidine (63149-33-7) → coumarin 510 (87349-92-6)

Guidance literature:

With piperidine; In acetic acid; butan-1-ol;

DOI:10.1080/00304940109356622

Reference yield:

8-hydroxyjulolidine (41175-50-2) → coumarin 510 (87349-92-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 90 percent / POCl₃

2: 61 percent / piperidine / butan-1-ol; acetic acid

With piperidine; trichlorophosphate; In acetic acid; butan-1-ol; 1: Vilsmeier reaction / 2: Knoevenagel condensation;

DOI:10.1080/00304940109356622

upstream raw materials:

pyridin-3-yl-acetic acid ethyl ester

9-formyl-8-hydroxyjulolidine

8-hydroxyjulolidine