Fig. 1.
FTIR spectrum of 2,6-di-
ter
t-butylphenol (A), 3,5-di-
tert
-butyl-4-hydroxybenzaldehyde (B) and 2,6-DBVP
(C).
It was shown that the appearance of absorption bands at 3600 cm
1
−
, 1629 cm
1
−
, 1362 cm
1
−
and 1234
cm
1
−
corresponding to O-H , -CH=CH
2
, -C(CH
3
)
3
and C-O in 2,6-DBVP structure, respectively.
Conclusion
The 2,6pdip
tert
pbutylp4pvinylphenol antioxidant was successful prepared by Witting reaction from 3,5pdip
tert
pbutylp4phydroxylbenzadehyde and methyltriphenylphosphonium iodide in THF. The 3,5pdip
tert
pbutylp4p
hydroxylbenzadehyde was prior prepared by reflux of 2,6pdip
tert
pbutylp4pvinylphenol, formalin in the glacial acetic
acid and ammonium acetate. The product obtained was primarily characterized by FTIR spectroscopy. It was found
that the appearance of absorption bands at 3600 cm
-1
, 1629 cm
-1
, 1362 cm
-1
and 1234 cm
-1
corresponding to O-H ,
-CH=CH
2
, -C(CH
3
)
3
and C-O in 2,6-DBVP structure, respectively.
A
B
C
