4-Chloro-6-ethyl-5-fluoropyrimidine

Base Information

• Chemical Name: 4-Chloro-6-ethyl-5-fluoropyrimidine
• CAS No.: 137234-74-3
• Molecular Formula: C6H6ClFN2
• Molecular Weight: 160.578
• Hs Code.: 2933599090
• Mol file: 137234-74-3.mol

Synonyms:Pyrimidine,4-chloro-6-ethyl-5-fluoro-;

Chemical Property of 4-Chloro-6-ethyl-5-fluoropyrimidine

Chemical Property:

• Vapor Pressure: 0.272mmHg at 25°C
• Refractive Index: 1.502
• Boiling Point: 210.913 °C at 760 mmHg
• PKA: -0.45±0.26(Predicted)
• Flash Point: 81.358 °C
• PSA: 25.78000
• Density: 1.286 g/cm³
• LogP: 1.83150
• Storage Temp.: Room temperature.
• Solubility.: Chloroform, Ethyl Acetate

Purity/Quality:

99%, ^*data from raw suppliers

4-Chloro-6-ethyl-5-fluoropyrimidine ^*data from reagent suppliers

Safty Information:

• Pictogram(s): 20/21/22-36/37/38:
• Hazard Codes: 20/21/22-36/37/38:
• Statements: 20/21/22-36/37/38-41
• Safety Statements: 22-36/37/39-45-39-26

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 4-Chloro-6-ethyl-5-fluoropyrimidine is a pyrimidine derivative used as a building block in the preparation of bio-active compounds such as broad-spectrum triazole antifungal agents. A pyrimidine derivative used as a building block in the preparation of bio-active compounds such as broad-spectrum triazole antifungal agents.

Technology Process of 4-Chloro-6-ethyl-5-fluoropyrimidine

There total 10 articles about 4-Chloro-6-ethyl-5-fluoropyrimidine 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: 99.0%

6-ethyl-5-fluoropyrimidin-4(1H)-one (137234-87-8) → 4-chloro-6-ethyl-5-fluoropyrimidine (137234-74-3)

Guidance literature:

With triethylamine; trichlorophosphate; In dichloromethane; at 48 ℃; for 6h; Product distribution / selectivity; Industry scale; Heating / reflux;

Reference yield: 95.0%

6-ethyl-5-fluoro-4-hydroxypyrimidine (137234-87-8) → 4-chloro-6-ethyl-5-fluoropyrimidine (137234-74-3)

Guidance literature:

6-ethyl-5-fluoro-4-hydroxypyrimidine; With triethylamine; trichlorophosphate; In dichloromethane; for 5.5h; Heating / reflux;

With hydrogenchloride; water; In dichloromethane; at 20 ℃;

Reference yield: 88.4%

3-(6-chloro-5-fluoropyrimidin-4-yl)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol (188416-35-5) → 1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazolyl)ethanone (86404-63-9) + 4-chloro-6-ethyl-5-fluoropyrimidine (137234-74-3)

Guidance literature:

With hydrogenchloride; In water; at 60 - 70 ℃; Temperature; Reagent/catalyst; Solvent;

upstream raw materials:

6-Ethyl-5-fluoropyrimidin-4(3H)-one

2-fluoro-3-oxopentanoic acid ethyl ester

6-ethyl-5-fluoro-4-hydroxypyrimidine

hypochloric acid

Downstream raw materials:

3-(6-chloro-5-fluoropyrimidin-4-yl)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol

2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol

methyl 2-(6-ethyl-5-fluoropyrimidin-4-yl-sulfanyl)benzoate

Refernces

• 1、 -. "Voriconazole and intermediate preparation method". Paragraph 0013; 0030-0041. . Retrieved 2019/05/15.
• 2、 -. "PROCESS FOR THE PREPARATION OF VORICONAZOLE". Page/Page column 8. . Retrieved 2012/01/13.