3',5'-Difluoropropiophenone

Base Information

• Chemical Name: 3',5'-Difluoropropiophenone
• CAS No.: 135306-45-5
• Molecular Formula: C9H8F2O
• Molecular Weight: 170.159
• Hs Code.: 2914700090
• Mol file: 135306-45-5.mol

Synonyms:3,5-Difluoropropiophenone;3',5'-Difluoropropiophenone;

Chemical Property of 3',5'-Difluoropropiophenone

Chemical Property:

• Vapor Pressure: 0.513mmHg at 25°C
• Melting Point: 25 °C
• Refractive Index: 1.472
• Boiling Point: 210.621 °C at 760 mmHg
• Flash Point: 78.793 °C
• PSA: 17.07000
• Density: 1.166 g/cm³
• LogP: 2.55750
• Storage Temp.: Inert atmosphere,Room Temperature

Purity/Quality:

98%min ^*data from raw suppliers

3',5'-Difluoropropiophenone 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-36/37

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 3',5'-Difluoropropiophenone

There total 5 articles about 3',5'-Difluoropropiophenone 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: 94.0%

3,5-difluoro-N-methoxy-N-methylbenzamide (874889-34-6) + ethylmagnesium chloride (2386-64-3) → 1-(3,5-difluorophenyl)-propan-1-one (135306-45-5)

Guidance literature:

In tetrahydrofuran; at 0 - 20 ℃; for 2h;

Reference yield:

3,5-difluorobenzonitrile (64248-63-1) + ethylmagnesium bromide (925-90-6) → 1-(3,5-difluorophenyl)-propan-1-one (135306-45-5)

Guidance literature:

In diethyl ether;

DOI:10.1021/jm950630p

Reference yield:

3,5-difluorobenzoic acid (455-40-3) → 1-(3,5-difluorophenyl)-propan-1-one (135306-45-5)

Guidance literature:

Multi-step reaction with 3 steps

1: thionyl chloride / 5 h / Reflux

2: pyridine / dichloromethane / 12 h / 20 °C

3: tetrahydrofuran / 2 h / 0 - 20 °C

With pyridine; thionyl chloride; In tetrahydrofuran; dichloromethane;

upstream raw materials:

3,5-difluorobenzonitrile

ethylmagnesium bromide

3,5-difluorobenzoic acid

3,5-difluoro-N-methoxy-N-methylbenzamide

Downstream raw materials:

2-bromo-3',5'-difluoropropiophenone

1-(3,5-difluorophenyl)propan-1-ol

C₁₃H₁₂F₂O₄

C₁₄H₁₄F₂N₂O₂

Refernces

• 1、 -. "N-(Substituted sulfonyl)benzamide derivative and preparation method and pharmaceutical application thereof". . . Retrieved 2019/04/17.
• 2、 -. "Heterocyclic pharmaceutical compounds and use". . . Retrieved 2008/06/13.