6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one

Base Information

• Chemical Name: 6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one
• CAS No.: 152835-58-0
• Molecular Formula: C₂₅H₂₆F₂N₂O₄
• Molecular Weight: 456.489
• Mol file: 152835-58-0.mol

Synonyms:6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one

Chemical Property of 6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one

There total 8 articles about 6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one 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:

4'-(pivaloylamino)acetophenone (130599-96-1) + ethyl 3,5-difluoro-6-(N-ethoxycarbonyl-N-pivaloylamino)-2-methoxymethoxybenzoate (152835-59-1) → 6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one (152835-58-0)

Guidance literature:

With hydrogenchloride; sodium chloride; In 1,4-dioxane; ethanol; water;

Reference yield:

N-(2-{3-[4-(2,2-Dimethyl-propionylamino)-phenyl]-3-oxo-propionyl}-4,6-difluoro-3-methoxymethoxy-phenyl)-2,2-dimethyl-propionamide (152835-81-9) → 6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one (152835-58-0)

Guidance literature:

With hydrogenchloride; In ethanol; for 16h; Ambient temperature;

DOI:10.1021/jm9700326

Reference yield:

pivaloyl chloride (3282-30-2) → 6,8-Difluoro-5-pivaloylamino-2-(4-pivaloylaminophenyl)-4H-1-benzopyran-4-one (152835-58-0)

Guidance literature:

Multi-step reaction with 3 steps

1: NaH / tetrahydrofuran / 1.5 h / 0 °C

2: NaH / dioxane; toluene / 2 h / Heating

3: conc. aq. HCl / ethanol / 16 h / Ambient temperature

With hydrogenchloride; sodium hydride; In tetrahydrofuran; 1,4-dioxane; ethanol; toluene;

DOI:10.1021/jm9700326

upstream raw materials:

N-(2-{3-[4-(2,2-Dimethyl-propionylamino)-phenyl]-3-oxo-propionyl}-4,6-difluoro-3-methoxymethoxy-phenyl)-2,2-dimethyl-propionamide

pivaloyl chloride

ethyl 2-(N-ethoxycarbonyl-N-pivaloyl)amino-6-(tetrahydropyran-2-yloxy)benzoate

ethyl 6-(N-ethoxycarbonylamino)-2-hydroxybenzoate

Downstream raw materials:

5-Amino-2-(4-aminophenyl)-6,8-difluoro-4H-1-benzopyran-4-one