2-Ethyl-2-oxazoline

Base Information

• Chemical Name: 2-Ethyl-2-oxazoline
• CAS No.: 10431-98-8
• Deprecated CAS: 114730-75-5,2072113-68-7
• Molecular Formula: C5H9NO
• Molecular Weight: 99.1326
• Hs Code.: 29349990
• European Community (EC) Number: 233-912-4
• NSC Number: 136557
• UNII: B8CD92T4P5
• DSSTox Substance ID: DTXSID9065075
• Nikkaji Number: J24.393K
• Wikipedia: 2-Ethyl-2-oxazoline
• Wikidata: Q26218964
• Mol file: 10431-98-8.mol

Synonyms:2-ethyl-2-oxazoline

Chemical Property of 2-Ethyl-2-oxazoline

Chemical Property:

• Appearance/Colour: clear liquid
• Vapor Pressure: 13mmHg at 25°C
• Melting Point: -62 °C(lit.)
• Refractive Index: n20/D 1.437(lit.)
• Boiling Point: 128.4 °C at 760 mmHg
• PKA: 5.65±0.50(Predicted)
• Flash Point: 29.4 °C
• PSA: 21.59000
• Density: 1.05 g/cm³
• LogP: 0.26070
• Storage Temp.: Flammables area
• Sensitive.: Air Sensitive
• Water Solubility.: MISCIBLE
• XLogP3: 0.3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 1
• Exact Mass: 99.068413911
• Heavy Atom Count: 7
• Complexity: 88.1

Purity/Quality:

99.9% ^*data from raw suppliers

2-Ethyl-2-oxazoline >98.0%(GC)(T) ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 10-20/21/22
• Safety Statements: 16-26-28-36/37/39

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Nitrogen Compounds -> Other Nitrogen Compounds
• Canonical SMILES: CCC1=NCCO1
• Uses: 2-ethyl-2-oxazoline is an organic intermediate and monomer that is used in water-soluble polymers, pharmaceuticals, cosmetics, specialty coatings and adhesives. 2-Ethyl-2-oxazoline (EtOx) was used in synthesis of block copolymers of EtOx and styrene by cationic ring-opening polymerization and atom transfer radical polymerization.

Technology Process of 2-Ethyl-2-oxazoline

There total 10 articles about 2-Ethyl-2-oxazoline 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: 92.0%

ethanolamine (141-43-5) + propionic acid (802294-64-0,79-09-4) → 2-ethyl-4,5-dihydrooxazole (10431-98-8)

Guidance literature:

ethanolamine; propionic acid; at 180 - 200 ℃; for 3 - 4h;

With boric acid; In toluene; at 130 ℃;

With calcium oxide; at 280 ℃; for 3h;

DOI:10.1016/j.tetlet.2010.07.167

Reference yield: 90.2%

→ 2-ethyl-4,5-dihydrooxazole (10431-98-8)

Guidance literature:

Reference yield: 83.0%

ethanolamine (141-43-5) + methyl(diethylamino)acetylene (4231-35-0) → 2-ethyl-4,5-dihydrooxazole (10431-98-8)

Guidance literature:

With sulfuric acid; for 1h; Ambient temperature;

upstream raw materials:

N-(2-hydroxyethyl)propionamide

thiopropionyl-carbamic acid ethyl ester

ethanolamine

propionic acid

Downstream raw materials:

5-Aethyl-3-phenyl-1-aza-4,6-dioxa-bicyclo<3.3.0>octan

2-ethylidene-oxazolidine-3-carbonyl chloride

2-(4,5-dihydro-oxazol-2-yl)-propan-1-ol

N-(4-methylphenyl)-N'-propionylethylenediamine

Refernces

• 1、 Gutierrez, David A.,Dean, Dayton R.,Laxamana, Candace M.,Migliozzi-Smith, Madyson,O'Brien, Connor J.,O'Neill, Claire L.,Li, Jie Jack. "Sulfonimidation via ring-opening of 2-oxazolines with acidic sulfonimide nucleophiles". . p. 261 - 276. Retrieved 2016/07/06.
• 2、 Zhou, Aihua,Pittman Jr., Charles U.. "Generation of cyclic ketene-N,X-acetals (X = O, S) from 2-alkyl-1,3-oxazolines and 2-alkyl-1,3-thiazolines. Reactions with acid chlorides, 1,3-diacid chlorides and N-(chlorocarbonyl) isocyanate". . p. 37 - 48. Retrieved 2007/10/03.