1-Oxo-1H-isochroMene-4-carboxylic acid

Base Information

• Chemical Name: 1-Oxo-1H-isochroMene-4-carboxylic acid
• CAS No.: 15868-29-8
• Molecular Formula: C10H6O4
• Molecular Weight: 190.155
• Mol file: 15868-29-8.mol

Synonyms:1-oxo-1H-isochromene-4-carboxylic acid;1-Oxo-1H-isochromen-4-carbonsaeure;4-carboxyisocoumarin;Isocoumarin-4-carbonsaeure;4-carboxy-1H-2-benzopyran-1-one;isocoumarin-4-carboxylic acid;

Chemical Property of 1-Oxo-1H-isochroMene-4-carboxylic acid

Chemical Property:

• Melting Point: 252-253°C
• PSA: 67.51000
• LogP: 1.49120
• Storage Temp.: Amber Vial, -20°C Freezer, Under inert atmosphere
• Solubility.: Aqueous Base (Slightly), DMSO (Slightly)

Purity/Quality:

97% ^*data from raw suppliers

1-Oxo-1H-isochromene-4-carboxylicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1-Oxo-1H-isochroMene-4-carboxylic acid

There total 9 articles about 1-Oxo-1H-isochroMene-4-carboxylic acid 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: 70.0%

4-Methoxymethylen-3,4-dihydro-1H-2-benzopyran-1,3-dion (78364-23-5) → 1-oxo-1H-isochromene-4-carboxylic acid (15868-29-8)

Guidance literature:

With hydrogenchloride; In 1,4-dioxane; for 2h;

Reference yield:

Homophthalic acid (89-51-0) → 1-oxo-1H-isochromene-4-carboxylic acid (15868-29-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 66 percent / acetic acid anhydride / 1 h / Heating

2: 1) 2N NaOH, 2) aq. HCl / 1) dioxane, 3 h, room temperature, 2) 0 deg C

With hydrogenchloride; sodium hydroxide; acetic anhydride;

Reference yield:

homophthalic anhydride (703-59-3) → 1-oxo-1H-isochromene-4-carboxylic acid (15868-29-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 82 percent / acetic acid anhydride / 1 h / Heating

2: 1) 2N NaOH, 2) aq. HCl / 1) dioxane, 3 h, room temperature, 2) 0 deg C

With hydrogenchloride; sodium hydroxide; acetic anhydride;

upstream raw materials:

methyl 1-oxo-1H-isochromene-4-carboxylate

ethyl 1-oxo-1H-isochromene-4-carboxylate

diethyl homophthalate

formic acid ethyl ester

Downstream raw materials:

4-acetylisocoumarin

2-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid

formic acid

Homophthalic acid

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