Ethyl 2-butynoate
Synonym(s):Ethyl tetrolate
- CAS NO.:4341-76-8
- Empirical Formula: C6H8O2
- Molecular Weight: 112.13
- MDL number: MFCD00015182
- EINECS: 224-395-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-11-04 17:04:04
What is Ethyl 2-butynoate?
The Uses of Ethyl 2-butynoate
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.
The Uses of Ethyl 2-butynoate
Ethyl 2-butynoate was used in the study of its effect on in vitro degradation and microbial biomass production.
It may be used in the synthesis of the following:
- 3-ethyl, 1-methyl 1-(2-nitrophenyl)-cyclopent-3-ene-1,3-dicarboxylate
- tricyclic aziridine derivatives
- alkenylsilanols
What are the applications of Application
Ethyl 2-butynoate is a simple alkyne and methyl ester that could be a useful synthetic intermediate
Synthesis Reference(s)
Organic Syntheses, Coll. Vol. 7, p. 226, 1990
The Journal of Organic Chemistry, 38, p. 3588, 1973 DOI: 10.1021/jo00960a032
General Description
Ethyl 2-butynoate, a 2-alkynoate is a methanogenesis inhibitor. It is an electron deficient internal alkyne that has been reported to undergo codimerization with alkenes to form 1,3-dienes catalyzed by rhodium(I)/H8-BINAP complex. The annulation of thioamides with ethyl 2-butynoate catalyzed by tri-n-butylphosphine to form thiazolines has been investigated.
Properties of Ethyl 2-butynoate
| Boiling point: | 160-161 °C/730 mmHg (lit.) |
| Density | 0.962 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 145 °F |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | Chloroform, Ethyl Acetate |
| form | Powder |
| color | Grey to red to brown |
| Specific Gravity | 0.962 |
| Water Solubility | Miscible with water, chloroform and ethyl acetate. |
| Sensitive | Air Sensitive |
| BRN | 1744948 |
| CAS DataBase Reference | 4341-76-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Ethyl 2-butynoate(4341-76-8) |
Safety information for Ethyl 2-butynoate
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Ethyl 2-butynoate
| InChIKey | FCJJZKCJURDYNF-UHFFFAOYSA-N |
Ethyl 2-butynoate manufacturer
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