Citation:
Xin Ying Zhang, Xiao Yan Li, Xue Sen Fan, Xia Wang, Jian Ji Wang, Gui Rong Qu. A novel synthesis of pyrazolo[3,4-b]pyridine derivatives through multi-component reaction in ionic liquid[J]. Chinese Chemical Letters,
;2008, 19(2): 153-156.
doi:
10.1016/j.cclet.2007.12.009
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An efficient and novel procedure for the preparation of pyrazolo[3, 4-b]pyridine derivatives through multi-component reaction of aldehyde, 5-amino-3-methyl-1-phenylpyrazole and malononitrile or eyanoaeetate in[bmim][BF4] is described in this paper.Advantages of the method presented here include mild conditions, high yields together with a green nature and ease of recovery and reuse of the reaction medium.
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