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ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER

CAS No.
27741-65-7
Chemical Name:
ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER
Synonyms
Ethyl cyclobutylideneacetate;Ethyl2-cyclobutylideneacetate;Carbethoxymethylenecyclobutane;Ethyl cyclobutylideneacetate 97%;Cyclobutylidene-acetic acid ethyl ester;2-Cyclobutylideneacetic acid ethyl ester;ethyl 2-cyclobutylideneacetate - [E47017];Acetic acid, cyclobutylidene-, ethyl ester;ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER
CBNumber:
CB42468538
Molecular Formula:
C8H12O2
Molecular Weight:
140.18
MDL Number:
MFCD11977311
MOL File:
27741-65-7.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:46
Product description Number Pack Size Price
Ethyl2-cyclobutylideneacetate 2660AB 250mg $131
Ethyl cyclobutylideneacetate 2323-1-43 250mg $152
Ethyl cyclobutylideneacetate 2323-1-43 1g $240
Ethyl cyclobutylideneacetate 2323-1-43 5G $672
Ethyl cyclobutylideneacetate 97% 083613 1g $414
More product size

ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER Properties

Melting point 21℃
Boiling point 128-130℃ (2 Torr)
Density 1.124±0.06 g/cm3(Predicted)
storage temp. 2-8°C
Appearance Colorless to light yellow Liquid

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P280-P305+P351+P338
HS Code  2916199590

ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER price More Price(23)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
AK Scientific 2660AB Ethyl2-cyclobutylideneacetate 27741-65-7 250mg $131 2021-12-16 Buy
SynQuest Laboratories 2323-1-43 Ethyl cyclobutylideneacetate 27741-65-7 250mg $152 2021-12-16 Buy
SynQuest Laboratories 2323-1-43 Ethyl cyclobutylideneacetate 27741-65-7 1g $240 2021-12-16 Buy
SynQuest Laboratories 2323-1-43 Ethyl cyclobutylideneacetate 27741-65-7 5G $672 2021-12-16 Buy
Matrix Scientific 083613 Ethyl cyclobutylideneacetate 97% 27741-65-7 1g $414 2021-12-16 Buy
Product number Packaging Price Buy
2660AB 250mg $131 Buy
2323-1-43 250mg $152 Buy
2323-1-43 1g $240 Buy
2323-1-43 5G $672 Buy
083613 1g $414 Buy

ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER Chemical Properties,Uses,Production

Synthesis

Triethyl phosphonoacetate

867-13-0

Cyclobutanone

1191-95-3

ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER

27741-65-7

A 25 mL THF solution of triethyl phosphonoacetate (44.8 g) was added dropwise to a suspension of THF (150 mL) containing NaH (8.0 g, 60% oil dispersion) over 40 min at 0-10 °C. The reaction mixture was kept at 0-10°C with continued stirring for 0.5 hr. Subsequently, a 25 mL THF solution of cyclobutanone (14.0 g) was added dropwise at the same temperature. The reaction mixture was stirred at 0-10 °C for 2 hours. Next, 50 mL of water was slowly added at 20-30 °C. After removing the organic solvent by distillation under reduced pressure, 150 mL of water was added. The aqueous solution was extracted using MTBE (3 x 100mL). The organic phases were combined and washed with 100 mL of water and subsequently dried with anhydrous MgSO4. After filtration, the solvent was evaporated to give the crude product, which was purified by fractional distillation (81-82 °C/19 mbar) to give 22.2 g (79% yield) of ethyl 2-cyclobutylideneacetate as a colorless liquid. The product was characterized by the following data: 1HNMR (500 MHz, CDCl3) δ 5.58 (m, 1H), 4.13 (q, 2H, J = 7.1 Hz), 3.15-3.12 (m, 2H), 2.85-2.82 (m, 2H), 2.12-2.06 (m, 2H), 1.26 (t, 3H, J = 7.1 Hz); 13C NMR (125 MHz, CDCl3) δ 167.60,166.60,112.38,59.53,33.75,32.32,17.66,14.36; MS (m/z) 140.1; ESI-HRMS m/z calculated for C8H12O2 [M+H]+ 141.0910, found 141.0911.

References

[1] Journal of Organic Chemistry, 2016, vol. 81, # 3, p. 1057 - 1074
[2] Journal of the Chemical Society. Perkin Transactions 2, 1999, # 5, p. 937 - 945
[3] Tetrahedron Letters, 2015, vol. 56, # 45, p. 6287 - 6289
[4] Patent: WO2016/37534, 2016, A1. Location in patent: Page/Page column 19
[5] Patent: US2017/27172, 2017, A1. Location in patent: Paragraph 0203

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View Lastest Price from ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER pictures 2020-01-13 ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER
27741-65-7
US $5.00 / KG 1KG 98% 100KG Career Henan Chemical Co

ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER Spectrum

ACETIC ACID, 2-CYCLOBUTYLIDENE-, ETHYL ESTER Ethyl cyclobutylideneacetate 2-Cyclobutylideneacetic acid ethyl ester Carbethoxymethylenecyclobutane Cyclobutylidene-acetic acid ethyl ester Ethyl2-cyclobutylideneacetate Acetic acid, cyclobutylidene-, ethyl ester Ethyl cyclobutylideneacetate 97% ethyl 2-cyclobutylideneacetate - [E47017] 27741-65-7