Substance
ID:716910
Names and Identifiers
IUPAC Traditional name
ethoxy-ethyne
IUPAC name
ethoxyethyne
Synonyms
Ethyl ethynyl ether乙氧基乙炔Ethoxyacetylene
Registration numbers
MDL Number
Beilstein Number
CAS Number
EC Number
Properties
Safety Information
RTECS
KN9900000
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
Hazardous to the aquatic environment
Acute hazard, category1
Chronic hazard, categories 1,2
Flammable gases, category 1
Flammable aerosols, categories 1,2
Flammable liquids, categories 1,2,3
Self-reactive substances and mixtures, Types B,C,D,E,F
Pyrophoric liquids, category 1
Pyrophoric solids, category 1
Self-heating substances and mixtures
Substances and mixtures, which in contact with water, emit flammable gases, categories 1,2,3
Organic peroxides, Types B,C,D,E,F
Respiratory sensitization, category 1
Germ cell mutagenicity, categories 1A,1B,2
Carcinogenicity, categories 1A,1B,2
Reproductive toxicity, categories 1A,1B,2
Specific Target Organ Toxicity – Single exposure, categories 1,2
Specific Target Organ Toxicity – Repeated exposure, categories 1,2
Aspiration Hazard, category 1
GHS Precautionary statements
P210-P280H-P281-P301+P330+P331-P315-P403+P235
TSCA Listed
否
European Hazard Symbols
Harmful (X)
Flammable (F)
Nature polluting (N)Packing Group
II
GHS Hazard statements
H225-H304-H361-H373-H315-H303-H401-H411
Risk Statements
11-38-48/20-62-51/53-65
Safety Statements
9-16-29-33-36/37-61-62
UN Number
UN1993
Hazard Class
3
Physical Property
Density
0.718
Boiling Point
55-56°C
Refractive Index
1.3800
Flash Point
-28°C(-18°F)
Product Information
Purity
ca 50% w/w in hexanes
Molecule Details
No Data Available
Click here to submit data
Molecular Spectra
No Data Available
Click here to submit data
References
• The Grignard reagent, prepared by exchange with ethyl magnesium bromide, adds to carbonyl compounds to give carbinols which rearrange in acid to ɑ?-unsaturated acids. Alternatively, partial reduction of the adduct followed by hydrolysis provides a route to ɑ?-unsaturated aldehydes: J. Chem. Soc., 1823 (1949); Rec. Trav. Chim., 82, 305 (1963):
• Supplied in solution to reduce polymerization. Quantities offered relate to gross weight of solution.
• Undergoes [2+2] cycloaddition reactions with ketenes to give cyclobutenone derivatives: J. Org. Chem., 38, 1451 (1973).
• Adds to carbonyl compounds in the presence of ZnBr2: Can. J. Chem., 54, 2310 (1976).
• Has been used as a mild dehydrating agent in peptide synthesis: Rec. Trav. Chim., 77, 1153 (1958), and for conversion of sensitive dicarboxylic acids to their anhydrides: J. Org. Chem., 33, 3808 (1968).
• Rearrangement by BF3 etherate leads directly to the ethyl ester: Rec. Trav. Chim., 78, 664 (1959); Chem. Lett., 1129 (1981); 241, 1271 (1982). See also Chloroacetaldehyde diethyl acetal, L07661.