4694-80-8

Basic information

• Product Name: 4,5-dihydro-2-propyloxazole
• Synonyms: 4,5-dihydro-2-propyloxazole;2-propyl-2-oxazoline;2-propyl-4,5-dihydro-1,3-oxazole;2-propyl-4,5-dihydrooxazole;2-n-Propyl-2-oxazoline
• CAS NO: 4694-80-8
• Molecular Formula: C₆H₁₁NO
• Molecular Weight: 113.15764
• EINECS: 225-156-9
• Mol File: 4694-80-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 147 °C
• Flash Point: 23℃
• Appearance: /
• Density: 0.97
• Vapor Pressure: 7.04mmHg at 25°C
• Refractive Index: 1.4370-1.4410
• Storage Temp.: 2-8°C
• BRN: 1071572
• CAS DataBase Reference: 4,5-dihydro-2-propyloxazole(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-dihydro-2-propyloxazole(4694-80-8)
• EPA Substance Registry System: 4,5-dihydro-2-propyloxazole(4694-80-8)

Safety Data

• RIDADR: UN 1993C 3 / PGIII
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 4694-80-8(Hazardous Substances Data)

Usage

General Description

4,5-dihydro-2-propyloxazole, also known as propyloxazole, is a chemical compound with the molecular formula C5H9NO. It consists of a five-membered heterocyclic ring containing two carbon atoms, one nitrogen atom, and two oxygen atoms. 4,5-dihydro-2-propyloxazole is used as a building block in organic synthesis and is commonly used in the pharmaceutical industry as a precursor in the production of various drugs. Propyloxazole is also known for its antimicrobial properties and has been studied for its potential use in the development of new antibiotics. Additionally, it is a versatile intermediate in the production of agrochemicals and other fine chemicals. Overall, 4,5-dihydro-2-propyloxazole is a valuable chemical compound with a range of applications in the pharmaceutical and chemical industries.

InChI:InChI=1/C6H11NO/c1-2-3-6-7-4-5-8-6/h2-5H2,1H3

Upstream product

• 109-74-0 propyl cyanide 
• 141-43-5 ethanolamine 
• 23363-91-9 N-(2-hydroxyethyl)butyramide 

Downstream Products

• 4694-81-9 <2-(3.5-Dinitro-benzamino)-aethyl>-butyrat 
• 13670-37-6 2-(1-phenylcarbamoyl-propylidene)-oxazolidine-3-carboxylic acid anilide 
• 13488-76-1 2-phenoxymethyl-7a-propyl-tetrahydro-oxazolo[2,3-b]oxazole 

Relevant articles and documents

Synthesis of pH- and thermoresponsive poly(2-n-propyl-2-oxazoline) based copolymers

Polymers that possess lower critical solution temperature behavior such as poly(2-alkyl-2-oxazoline)s (PAOx) are interesting for their application as stimulus-responsive materials, for example in the biomedical field. In this work, we discuss the scalable and controlled synthesis of a library of pH- and temperature-sensitive 2-n-propyl-2-oxazoline P(nPropOx) based copolymers containing amine and carboxylic acid functionalized side chains by cationic ring opening polymerization and postpolymerization functionalization strategies. Using turbidimetry, we found that the cloud point temperature (CP) is strongly dependent on both the polymer concentration and the polymer charge (as a function of pH). Furthermore, we observed that the CP decreased with increasing salt concentration, whereas the CP increased linearly with increasing amount of carboxylic acid groups. Finally, turbidimetry studies in PBS-buffer indicate that CPs of these polymers are close to body temperature at biologically relevant polymer concentrations, which demonstrates the potential of P(nPropOx) as stimulus-responsive polymeric systems in, for example, drug delivery applications.

Method for inhibiting hydrate formation

A method for inhibiting the formation of clathrate hydrates in a fluid having hydrate forming constituents is disclosed. More specifically, the method can be used in treating a petroleum fluid stream such as natural gas conveyed in a pipe to inhibit the formation of a hydrate restriction in the pipe. The hydrate inhibitors used for practicing the method are substantially water soluble polymers formed from a cyclic imino ether. Some examples of such inhibitors include various N-acyl polyalkyleneimines, such as N-acyl substituted polyethyleneimine, N-acyl substituted polypropyleneimine, N-acyl substituted polybutyleneimine, N-acyl substituted polypentyleneimine and copolymers thereof. Also, such N-acyl substituted polyalkyleneimines can be used in various ratios with other substantially water soluble polymers and copolymers. Preferably, a solvent such as water, brine, alcohol, or mixtures thereof is used to produce an inhibitor solution or mixture to facilitate treatment of the petroleum fluid stream.