659-72-3

Basic information

• Product Name: Ethyl 4,4-difluoropentanoate
• Synonyms: Ethyl 4,4-difluoropentanoate;Ethyl 4,4-difluorovalerate;Pentanoic acid, 4,4-difluoro-, ethyl ester
• CAS NO: 659-72-3
• Molecular Formula: C7H12F2O2
• Molecular Weight: 166.1657864
• Product Categories: Alkyl Fluorinated Building Blocks;Building Blocks;C6 to C7;Carbonyl Compounds;Chemical Synthesis;Esters;Fluorinated Building Blocks;Organic Building Blocks;Organic Fluorinated Building Blocks;Other Fluorinated Organic Building Blocks
• Mol File: 659-72-3.mol

Chemical Properties

• Boiling Point: 70-72 °C(Press: 27 Torr)
• Flash Point: 55°C
• Appearance: /
• Density: 1.1012
• BRN: 1906601
• CAS DataBase Reference: Ethyl 4,4-difluoropentanoate(CAS DataBase Reference)
• NIST Chemistry Reference: Ethyl 4,4-difluoropentanoate(659-72-3)
• EPA Substance Registry System: Ethyl 4,4-difluoropentanoate(659-72-3)

Safety Data

• Hazard Codes: Xn
• Statements: 10-18-20/22-36/37/38
• Safety Statements: 26
• RIDADR: UN 3272 3 / PGIII
• WGK Germany: 3
• Hazardous Substances Data: 659-72-3(Hazardous Substances Data)

Usage

Uses

Used in the Food Industry:
Ethyl 4,4-difluoropentanoate is used as a flavoring agent for its ability to impart specific tastes to food products, enhancing their overall flavor profile.
Used in the Cosmetic and Perfume Industries:
In these industries, Ethyl 4,4-difluoropentanoate serves as a fragrance ingredient, capitalizing on its aromatic properties to create desirable scents in cosmetic and perfume formulations.
Used in Organic Synthesis:
Ethyl 4,4-difluoropentanoate is utilized as an intermediate in organic synthesis, playing a crucial role in the creation of more complex organic compounds.
Used in Pharmaceutical Production:
Ethyl 4,4-difluoropentanoate is used as an intermediate in the production of pharmaceuticals, contributing to the development of various medicinal agents.
Used in Agrochemical Production:
Ethyl 4,4-difluoropentanoate also finds application as an intermediate in the manufacture of agrochemicals, which are essential for agricultural productivity and pest control.
It is important to handle Ethyl 4,4-difluoropentanoate with care due to its potential harmful effects if ingested or inhaled, and its ability to cause skin and eye irritation.

Upstream product

• 539-88-8 4-oxopentanoic acid ethyl ester 

Downstream Products

• 148043-97-4 (-)-(S)-4,4-difluoronorvaline 
• 148043-78-1 (4R)-3-(4,4-difluoro-1-oxopentyl)-4-(phenylmethyl)-2-oxazolidinone 
• 148043-84-9 (2R,4R)-3-(2-bromo-4,4-difluoro-1-oxopentyl)-4-(phenylmethyl)-2-oxazolidinone 
• 148043-88-3 (2S,4R)-3-(2-azido-4,4-difluoro-1-oxopentyl)-4-(phenylmethyl)-2-oxazolidinone 
• 1455037-32-7 4,4-difluoropentyl 4-methylbenzenesulfonate 
• 125110-82-9 4,4-difluoropentanoic acid 

Relevant articles and documents

Organic light emitting material of auxiliary ligand having partially fluorine-substituted substituent

Disclosed is an organic light emitting material of an auxiliary ligand having a partially fluorine-substituted substituent. The organic light emitting material is a metal complex of a diketone auxiliary ligand with a partially fluorine-substituted substituent, and can be used as a light-emitting material in an electroluminescent device. These novel metal complexes can more effectively finely tune the emission wavelength, reduce the voltage, improve the efficiency, prolong the service life, and provide better device performance. An electroluminescent device and a compound formulation are also disclosed.

ORGANIC LUMINESCENT MATERIAL HAVING AN ANCILLARY LIGAND WITH A PARTIALLY FLUORINE-SUBSTITUTED SUBSTITUENT

Provided is an organic light-emitting material having an ancillary ligand with partially fluorinated substituents. The organic light-emitting material is a metal complex having a diketone ancillary ligand with partially fluorinated substituents and may be used as a light-emitting material in an organic electroluminescent device. These new types of metal complex can fine-tune the emission wavelength more effectively, reduce voltage, improve efficiency, prolong lifetimes, and provide better device performance. Further provided are an organic electroluminescent device and a compound formulation.

RAF INHIBITOR COMPOUNDS

This invention provides compounds of Formula (I) or a pharmaceutically acceptable salt thereof; pharmaceutical compositions comprising a compound of Formula (I); and use of a compound of Formula (I) for treating specified cancers.

Synthesis of Amino Acids with Modified Principal Properties 1. Amino Acids with Fluorinated Side Chains

The synthesis and characterization of chiral fluorinated analogues of norvaline and norleucine from commercially available starting materials are presented.Full experimental details for the synthesis of the following amino acids are given: (S)-4,4-difluoronorvaline, (S)-4,4,5,5,5-pentafluoronorvaline, (S)-5,5-difluoronorleucine, (S)-5,5,6,6,6-pentafluoronorleucine, and (S)-4,4,5,5,6,6,6-heptafluoronorleucine.These compounds were prepared with a view to obtaining new amino acids which possess physical and chemical properties so that their principal properties would be outside the range of variation of hitherto known amino acids.The principal properties are determined as latent variables in principal component analysis of molecular property descriptors.Two of the fluorinated amino acids, (S)-5,5,6,6,6-pentafluoronorleucine and (S)-4,4,5,5,6,6,6-heptafluoronorleucine were found to have principal properties outside the variation of previously characterized natural and synthetic amino acids.The principal properties, z parameters, for the five new fluorinated amino acids are given.

REACTION OF KETOCARBOXYLIC ESTERS WITH SULFUR TETRAFLUORIDE IN ANHYDROUS HYDROGEN FLUORIDE

The reaction of ketocarboxylic esters with sulfur tetrafluoride in anhydrous hydrogen fluoride at 20 deg C gives good yields of difluorocarboxylic esters.Hydrolysis of the latter gave the corresponding carboxylic acids.