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以对乙基苯酚为起始反应物,采用特丁氧酰基保护其酚羟基,经过α-溴代反应和β-消除反应,得目标产物对特丁氧酰氧基苯乙烯(PTBOCS)。制备过程中,中间产物对特丁氧酰氧基苯乙烷和1-溴-1-(p-特丁氧酰氧基)苯基乙烷的产率分别为98%和65%,目标产物PTBOCS的产率为60%。该法反应条件相对温和,分离效率高。对中间产物和目标产物进行了FTIR和1H NMR表征,并确认了它们的结构。
Using p-ethylphenol as starting reactant, the phenolic hydroxyl group was protected by terbutyryl acyl group, and the target product p-butoxyloyloxystyrene (PTBOCS) was obtained through α-bromo reaction and β-elimination reaction. The yield of intermediate for p-butyloxyacyloxyphenyl ethane and 1-bromo-1- (p-t-butoxyloyloxy) phenyl ethane was 98% and 65%, respectively, for the intermediate product. The yield of the target product The yield of PTBOCS is 60%. The reaction conditions are relatively mild, high separation efficiency. The intermediates and target products were characterized by FTIR and 1H NMR and confirmed their structure.