Du Longchao
2013
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Journal
Materials review
Abstract
3-tert-butyl-2-hydroxybenzaldehyde was synthesized from 2-(tert-butyl)phenol,magnesium scraps and paraformaldehyde in methanol by formylation.Then 5-bromo-3-tert-butyl-2-hydroxy-benzaldehyde was synthesized from bromine and 3-tert-butyl-2-hydroxybenzaldehyde.The solvent,reaction temperature,material ratio were investigated.The optimal conditions of 5-bromo-3-tert-butyl-2-hydroxy-benzaldehyde were obtained as follows: solvent of ethylalcohol,n(3-tert-butyl-2-hydroxybenzaldehyde)∶n(Br2) =1∶1.1,temperature of 60 ℃,reaction time of 8 h,1H-NMR characterization was employed to confirm the target compounds.