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4-(quinolin-4-yl)-1H-pyrazol-5-aMine synthesis

4synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 5 steps
1.1: methanol; sodium tetrahydroborate / 1.33 h / 0 - 20 °C
2.1: thionyl chloride / dichloromethane / 2.33 h / 0 - 20 °C
2.2: pH > 7 / Saturated solution
3.1: N,N-dimethyl-formamide / 20 - 80 °C
4.1: 6 h / 120 °C
5.1: hydrazine monohydrobromide / ethanol; water / 5 h / 110 °C
5.2: Saturated solution

References:

WO2009/114180,2009,A1