ChemicalBook > CAS DataBase List > ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE

ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE

Product Name
ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE
CAS No.
91252-54-9
Chemical Name
ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE
Synonyms
-1,2-oxazoL;BUTTPARK 146\06-95;ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE;ethyl 5-tert-butyl-1,2-oxazole-3-carboxylate;5-tert-Butyl-isoxazole-3-carboxylic acid ethyl ester;3-Isoxazolecarboxylic acid, 5-(1,1-dimethylethyl)-, ethyl ester
CBNumber
CB1225516
Molecular Formula
C10H15NO3
Formula Weight
197.23
MOL File
91252-54-9.mol
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ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE Property

Boiling point:
108-111 °C(Press: 5.5 Torr)
Density 
1.057±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
pka
-4.93±0.50(Predicted)
Appearance
Colorless to light yellow Liquid
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Safety

Hazard Codes 
Xi
Hazard Note 
Irritant
HS Code 
2934999090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

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N-Bromosuccinimide Price

TRC
Product number
E937073
Product name
Ethyl5-(tert-Butyl)isoxazole-3-carboxylate
Packaging
500mg
Price
$130
Updated
2021/12/16
SynQuest Laboratories
Product number
4H23-1-U4
Product name
Ethyl 5-(tert-butyl)isoxazole-3-carboxylate
Packaging
250mg
Price
$55
Updated
2021/12/16
Matrix Scientific
Product number
073369
Product name
Ethyl 5-tert-butylisoxazole-3-carboxylate
Purity
95+%
Packaging
250mg
Price
$99
Updated
2021/12/16
Matrix Scientific
Product number
073369
Product name
Ethyl 5-tert-butylisoxazole-3-carboxylate
Purity
95+%
Packaging
5g
Price
$565
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0029759
Product name
ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE
Purity
95.00%
Packaging
1G
Price
$737.58
Updated
2021/12/16
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ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE Chemical Properties,Usage,Production

Synthesis

94122-76-6

91252-54-9

General procedure for the synthesis of ethyl 5-tert-butyl-isoxazole-3-carboxylate from the compound (CAS:94122-76-6): tert-butyl alkenone (50) (6.00 g, 30.0 mmol) was dissolved in anhydrous ethanol/THF (1:1, 70 mL) and stirred at room temperature. To this solution was added hydroxylamine hydrochloride (2.29 g, 33.0 mmol) and the resulting mixture was stirred under nitrogen protection for 12 hours. Subsequently, the mixture was transferred to a Soxhlet extractor fitted with molecular sieves and heated to reflux for 2 hours. After completion of the reaction, the mixture was allowed to cool and the solvent was removed by evaporation. Water (100 mL) was added and the mixture was extracted with dichloromethane (2 x 100 mL). The organic phases were combined, dried over anhydrous sodium sulfate and concentrated. The crude product was purified by silica gel column chromatography to afford ethyl 5-tert-butyl-isoxazole-3-carboxylate (54) as a colorless oil (3 g, 51% yield).1H NMR (500 MHz, CDCl3) data for 54: δ 6.37 (s, 1H), 4.43 (q, 2H), 1.41 (t, 3H), 1.37 (s, 9H).

References

[1] Patent: US2006/199853, 2006, A1. Location in patent: Page/Page column 45
[2] Patent: US2006/223884, 2006, A1. Location in patent: Page/Page column 57-58

ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE manufacturers

Career Henan Chemical Co
Product
Ethyl 5-(tert-butyl)isoxazole-3-carboxylate 91252-54-9
Price
US $1.00/KG
Min. Order
1KG
Purity
Min98% HPLC
Supply Ability
g/kg/ton
Release date
2020-02-05

91252-54-9, ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATERelated Search:

5-TERT-BUTYL-ISOXAZOLE-3-CARBOXYLIC ACID METHYL ESTER 3-Isoxazolecarboxylicacid,5-(1,1-dimethylethyl)-(9CI) Methyl 5-methylisoxazole-3-carboxylate 3,5-Dimethylisoxazole 5-Isopropylisoxazole-3-carboxylic acid 5-Methylisoxazole-3-carboxaldehyde 5-Methylisoxazole-3-carboxylic acid 3-Isoxazolemethanol 3-Isoxazolecarboxylic acid Isoxazole-3-carbaldehyde (5-Methylisoxazol-3-yl)methanol ETHYL 5-METHYLISOXAZOLE-3-CARBOXYLATE AKOS PAO-1432 3-Isoxazolecarboxylic acid, methyl ester (8CI,9CI) 3-Isoxazolecarboxylicacid,5-ethyl-,ethylester(7CI,9CI) ETHYL ISOXAZOLE-3-CARBOXYLATE 5-ETHYL-ISOXAZOLE-3-CARBOXYLIC ACID ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE

  • BUTTPARK 146\06-95
  • ETHYL 5-TERT-BUTYLISOXAZOLE-3-CARBOXYLATE
  • ethyl 5-tert-butyl-1,2-oxazole-3-carboxylate
  • 5-tert-Butyl-isoxazole-3-carboxylic acid ethyl ester
  • -1,2-oxazoL
  • 3-Isoxazolecarboxylic acid, 5-(1,1-dimethylethyl)-, ethyl ester
  • 91252-54-9
  • Heterocycles series