Synthesis of 4-hydrazinopyrazolo[3,4-<i>d</i>]pyrimidines and their Reactions with Carbonyl Compounds
作者:Mastoura M. Edrees
DOI:10.3184/174751912x13543818811749
日期:2013.1
drazino-1H-pyrazolo[3,4-d]pyrimidin-3-yl]acetonitrile with thiophene-2-carbaldehyde and ethyl hydrazonoacetoacetate analogues gave the respective hydrazone and pyrazolone derivatives. Alkylation reactions of 2-[4,6-bis(benzylsulfanyl)-1H-pyrazolo[3,4-d]pyrimidin-3-yl]acetonitrile with arylamines gave the respective 4-(N-arylamino)-6-benzylsulfanylpyrazolo[3,4-d]pyrimidine derivatives.
通过加热(4,6-二硫代-1H-吡唑并[3,4-d]嘧啶-3-基)乙腈与水合肼合成新的4-肼基吡唑并[3,4-d]嘧啶。后一种产物与噻吩-2-甲醛和肼基乙酰乙酸乙酯类似物的反应分别得到相应的腙和吡唑衍生物。类似地,2-[6-(苄基硫烷基)-4-肼基-1H-吡唑并[3,4-d]嘧啶-3-基]乙腈与噻吩-2-甲醛和腙乙酰乙酸乙酯类似物缩合得到相应的腙和吡唑啉酮衍生品。2-[4,6-双(苄基硫烷基)-1H-吡唑并[3,4-d]嘧啶-3-基]乙腈与芳胺的烷基化反应得到相应的4-(N-芳基氨基)-6-苄基硫基吡唑并[3 ,4-d]嘧啶衍生物。