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ChemicalBook CAS DataBase List Cyclohexylhydrazine hydrochloride
24214-73-1

Cyclohexylhydrazine hydrochloride synthesis

4synthesis methods
TERT-BUTYL 2-CYCLOHEXYLHYDRAZINECARBOXYLATE

60295-21-8

Cyclohexylhydrazine hydrochloride

24214-73-1

GENERAL METHOD: tert-Butyl 2-cyclohexylhydrazine-1-carboxylate (1.9 g, 8.87 mmol) was dissolved in dioxane and to this solution was added a dioxane solution (20 mL) of 4 M HCl. The reaction mixture was heated to reflux and stirred overnight. Upon completion of the reaction, it was cooled to room temperature, the precipitated white precipitate was collected by filtration, washed with a small amount of cold dioxane and dried to give cyclohexylhydrazine hydrochloride (1.8 g, yield: >100%) as a white solid.

60295-21-8 Synthesis
TERT-BUTYL 2-CYCLOHEXYLHYDRAZINECARBOXYLATE

60295-21-8
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Yield:24214-73-1 100%

Reaction Conditions:

with hydrogenchloride in 1,4-dioxane;Reflux;

Steps:

161.3 Example 161: 4-chloro-N-(4-chlorophenyl)-1-cyclohexyl-3-methyl-1H-pyrazolo [3,4-b]pyridine-5-carboxamide

General procedure: To a solution of tert-butyl 2-cyclohexylhydrazine-1-carboxylate (1 .9g, 8 .87mmol) in dioxane was added HCl/dioxane (20 mL), it was then refluxed overnight. The white precipitate was filtrated to afford 1.8g (yield:>100%) of cyclohexylhydrazine hydrochloride as a white solid.

References:

WO2016/123392,2016,A2 Location in patent:Paragraph 00476

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