5-TERT-BUTYL-2-HYDROXY-BENZALDEHYDE Chemical Properties

Melting point:

100-103 °C

Boiling point:

251-252 °C/729 mmHg (lit.)

Density 

1.039 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.539(lit.)

Flash point:

220 °F

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

pka

8.39±0.18(Predicted)

Appearance

Colorless to light yellow Liquid

InChI

InChI=1S/C11H14O2/c1-11(2,3)9-4-5-10(13)8(6-9)7-12/h4-7,13H,1-3H3

InChIKey

ZVCQQLGWGRTXGC-UHFFFAOYSA-N

SMILES

C(=O)C1=CC(C(C)(C)C)=CC=C1O

Safety Information

Safety Statements 

23-24/25

WGK Germany 

3

HS Code 

2912490090

MSDS

• Language:English Provider:SigmaAldrich

5-TERT-BUTYL-2-HYDROXY-BENZALDEHYDE Usage And Synthesis

Uses

5-tert-Butyl-2-hydroxybenzaldehyde is a general chemical reactant/reagent used in the synthesis of Vanadium (V) amino phenolato antitumor agents. As well, its used in the synthesis of dibutyltin complexes for their cytotoxic activity.

Synthesis

Hexamethylenetetramine (4.77 g, 34.0 mmol) and 4-tert-butylphenol (2.55 g, 17.0 mmol) were dissolved in anhydrous trifluoroacetic acid (30 mL) under nitrogen atmosphere. The reaction mixture was heated to 80 °C and refluxed for 24 hours. Upon completion of the reaction, the mixture was slowly poured into 4 M hydrochloric acid solution (100 mL) and stirred for 10 min, followed by extraction with dichloromethane (2 x 100 mL). The organic phases were combined and washed sequentially with 4 M hydrochloric acid solution (2 × 100 mL) and deionized water (100 mL), dried over anhydrous sodium sulfate, and concentrated under reduced pressure to remove the solvent. The crude product was purified by silica gel column chromatography with dichloromethane as eluent to obtain the target product 5-tert-butyl-2-hydroxybenzaldehyde (1.85 g, yield 61.06%) in the form of yellow viscous liquid.

References

[1] Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2018, vol. 204, p. 657 - 664
[2] Synthesis, 1998, # 7, p. 1029 - 1032
[3] Monatshefte fuer Chemie, 1950, vol. 81, p. 1098,1106
[4] Journal of the American Chemical Society, 1950, vol. 72, p. 4324

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