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4341-76-8 - Ethyl 2-butynoate, 98% - 2-Butynoic acid ethyl ester - Ethyl tetrolate - B25370 - Alfa Aesar

B25370 Ethyl 2-butynoate, 98%

CAS Number
4341-76-8
Synonyms
2-Butynoic acid ethyl ester
Ethyl tetrolate

Size Price ($) Quantity Availability
1g 22.20
5g 69.10
25g 297.00
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Ethyl 2-butynoate, 98%

MDL
MFCD00015182
EINECS
224-395-6

Chemical Properties

Formula
C6H8O2
Formula Weight
112.13
Boiling Point
163°
Flash Point
53°(127°F)
Density
0.967
Refractive Index
1.4380
Sensitivity
Air Sensitive
Solubility
Miscible with water, chloroform and ethyl acetate.

Applications

Ethyl 2-butynoate is used as a precursor for the synthesis of 3-ethyl, 1-methyl 1-(2-nitrophenyl)-cyclopent-3-ene-1,3-dicarboxylate, alkenylsilanols and tricyclic aziridine derivatives. It acts as a methanogenesis inhibitor. As an electron deficient alkyne derivative, it plays a vital role in the preparation of 1,3-dienes catalyzed by rhodium(I)/H8-BINAP complex.

Notes

Air sensitive. Incompatible with oxidizing agents, bases and acids.

Literature References

Miyabe, H. Synthesis of Oxygen Heterocycles via Aromatic C-O Bond Formation Using Arynes. Molecules 2015, 20 (7), 12558-12575.

Liu, J.; Liu, H.; Na, R.; Wang, G.; Li, Z.; Yu, H.; Wang, M.; Zhong, J.; Guo, H. Phosphine-catalyzed [3 + 2] and [3 + 3] Annulations of Azomethine Imines with Ethyl 2-Butynoate. Chem. Lett. 2012, 41 (3), 218-220.

GHS Hazard and Precautionary Statements

Hazard Statements: H226-H315-H319-H335

Flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280g-P305+P351+P338

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Other References

Beilstein
1744948
Hazard Class
3
Packing Group
III
Harmonized Tariff Code
2916.19
TSCA
No

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