4- tert- butylbenzaldehyde

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Structural formula
Structural formula of 4-tert-butylbenzaldehyde
General
Surname 4-tert-butylbenzaldehyde
other names

p - tert -butylbenzaldehyde

Molecular formula C 11 H 14 O
Brief description

colorless liquid with a terpene-like, camphor-like, spicy, fruity odor

External identifiers / databases
CAS number 939-97-9
EC number 213-367-9
ECHA InfoCard 100.012.152
PubChem 70324
Wikidata Q15725613
properties
Molar mass 162.23 g mol −1
Physical state

liquid

density

0.973 g cm −3 (20 ° C)

Melting point

<−20 ° C

boiling point

244-246 ° C

Vapor pressure

3–4 Pa (20 ° C)

solubility

very heavy in water (133 mg l −1 at 20 ° C)

Refractive index

1.5270 (20 ° C)

safety instructions
GHS labeling of hazardous substances
07 - Warning 09 - Dangerous for the environment

Caution

H and P phrases H: 302-317-410
P: 261-273-342 + 311-501
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

4- tert -Butylbenzaldehyde is a chemical compound from the group of aldehydes .

Extraction and presentation

4- tert -Butylbenzaldehyde can be obtained by oxidizing 4- tert -butyltoluene with hydrogen peroxide in glacial acetic acid , catalyzed by bromide ions in combination with cobalt (II) acetate or cerium (III) acetate .

properties

4- tert -Butylbenzaldehyde is a flammable, hardly inflammable, light- and air-sensitive, colorless liquid with a terpene-like, camphor-like, spicy, fruity odor that is very sparingly soluble in water.

use

4- tert -Butylbenzaldehyde is an important intermediate for the synthesis of drugs, colorants, aromas and fragrances. It is used to manufacture penicillin derivatives with an isoxazolyl partial structure.

Individual evidence

  1. a b c d e f g h i Entry on 4-tert-butylbenzaldehyde in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
  2. a b c data sheet 4-tert-butylbenzaldehyde, 97% from Sigma-Aldrich , accessed on January 27, 2019 ( PDF ).
  3. ^ CRC Handbook of Chemistry and Physics, 95th Edition . CRC Press, 2014, ISBN 978-1-4822-0868-9 .
  4. ^ Leon G. A. van de Water, Arati Kaza, James K. Beattie, Anthony F. Masters, Thomas Maschmeyer: Partial Oxidation of 4- tert -Butyltoluene Catalyzed by Homogeneous Cobalt and Cerium Acetate Catalysts in the Br - / H 2 O 2 / Acetic Acid System: Insights into Selectivity and Mechanism . In: Chemistry - A European Journal . tape 13 , no. 28 , 2007, pp. 8037-8044 , doi : 10.1002 / chem.200700371 .
  5. Data sheet 4-tert-butylbenzaldehyde, 97% from AlfaAesar, accessed on August 24, 2017 ( PDF )(JavaScript required) .