(Z)-3-Benzylidene-3H-isochromene-1,4-dione ,97%

Base Information

• Chemical Name: (Z)-3-Benzylidene-3H-isochromene-1,4-dione ,97%
• CAS No.: 1681-79-4
• Molecular Formula: C16H10O3
• Molecular Weight: 250
• Hs Code.: 2932999099
• Mol file: 1681-79-4.mol

Synonyms:(Z)-3-Benzylidene-3H-isochromene-1,4-dione ,97%;(E)-3-Benzylidene-3H-isochromene-1,4-dione;1H-2-Benzopyran-1,4(3H)-dione, 3-(phenylmethylene)-;(Z)-3-Benzylidene-3H-isochroMene-1,4-dione;3-Benzylideneisochroman-1,4-dione

Chemical Property of (Z)-3-Benzylidene-3H-isochromene-1,4-dione ,97%

Chemical Property:

• PSA: 43.37000
• LogP: 3.08080
• Storage Temp.: 2-8°C

Purity/Quality:

99% ^*data from raw suppliers

3-Benzylideneisochroman-1,4-dione 95+% ^*data from reagent suppliers

Safty Information:

• Statements: 20/21/22
• Safety Statements: 36/37

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of (Z)-3-Benzylidene-3H-isochromene-1,4-dione ,97%

There total 4 articles about (Z)-3-Benzylidene-3H-isochromene-1,4-dione ,97% 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: 85.0%

isochroman-1,4-dione (5693-27-6) + benzaldehyde (100-52-7) → 3-(phenylmethylene)-1H-2-benzopyran-1,4(3H)-dione (1681-79-4)

Guidance literature:

With ammonium acetate; In acetic acid; at 60 ℃; for 6h;

DOI:10.1016/S0040-4039(02)00990-5

Reference yield: 83.0%

2-(3-phenyl-1-oxo-2-propen-1-yl)-benzoic acid (6261-64-9) → 3-(phenylmethylene)-1H-2-benzopyran-1,4(3H)-dione (1681-79-4)

Guidance literature:

With palladium 10% on activated carbon; propionic acid; at 130 ℃; for 24h; Reagent/catalyst; Catalytic behavior; Inert atmosphere; Schlenk technique;

DOI:10.1039/C8CC03402H

Reference yield:

2-acetyl-benzoic acid (577-56-0) + benzaldehyde (100-52-7) → 3-(phenylmethylene)-1H-2-benzopyran-1,4(3H)-dione (1681-79-4)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium hydroxide / ethanol / 12 h / 20 °C

2: palladium 10% on activated carbon; propionic acid / 24 h / 130 °C / Inert atmosphere; Schlenk technique

With palladium 10% on activated carbon; propionic acid; sodium hydroxide; In ethanol;

DOI:10.1039/C8CC03402H

upstream raw materials:

isochroman-1,4-dione

benzaldehyde

2-acetyl-benzoic acid

2-(3-phenyl-1-oxo-2-propen-1-yl)-benzoic acid

Downstream raw materials:

2-hydroxy-3-phenyl-1,4-naphthoquinone

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