Polystyrene - supported N - benzyl - N - alkyl - aminopyridine was prepared through chloromethylated polystyrene treated with 4 - aminopyridine and alkylation agents.

本文以聚苯乙烯氯球为原料,通过与 4- 氨基吡啶及烷基化试剂反应,制成聚苯乙烯支载N - 烷基-N-苄基氨基吡啶催化剂.

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The research progress of 4 - aminopyridine synthesis was reviewed, with the emphasis on 4 - nitropyridine N - oxide process.

评述了 4- 氨基吡啶的合成研究进展, 重点介绍了硝基氮氧化吡啶法工艺.

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