[A14245] CAS 927-80-0 | Ethoxyacetylene, ca 50% w/w in hexanes

CAS : 927-80-0
UN# : UN1993
MDL : MFCD00009247
Hazard Class : 3
EINECS : 213-164-5
Packing Group : II

Other name :

Ethyl ethynyl ether

Chemical Properties

Formula : C4H6O
Formula weight : 70.09
Boiling Point : 55-56°
Flash point : -28°(-18°F)
Density : 0.718
Refractive Index : 1.3800
Sensitivity : Keep Cold.
Form : Liquid
Solubility : Slightly miscible with water.

Literature References

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). The Grignard reagent, prepared by exchange with ethyl magnesium bromide, adds to carbonyl compounds to give carbinols which rearrange in acid to ɑß-unsaturated acids. Alternatively, partial reduction of the adduct followed by hydrolysis provides a route to ɑß-unsaturated aldehydes: J. Chem. Soc., 1823 (1949); Rec. Trav. Chim., 82, 305 (1963): 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. 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).

Notes

Incompatible with strong oxidizing agents and strong acids.Other References:Beilstein: 741882UN#: UN1993

Grade Specifications

Grade Specifications

Hazard Statements : H225-H304-H361-H373-H315-H303-H401-H411Highly flammable liquid and vapour.May be fatal if swallowed and enters airways.Suspected of damaging fertility or the unborn child.May cause damage to organs through prolonged or repeated exposure.Causes skin irritation.May be harmful if swallowed.Toxic to aquatic life.Toxic to aquatic life with long lasting effects.
Precautionary Statements : P210-P280h-P281-P301+P330+P331-P315-P403+P235Keep away from heat/sparks/open flames/hot surfaces. – No smoking.Wear protective gloves/clothing.Use personal protective equipment as required.IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.Get immediate medical advice/attention.Store in a well-ventilated place. Keep cool.