(2-CHLORO-BENZYL)-HYDRAZINE synthesis
- Product Name:(2-CHLORO-BENZYL)-HYDRAZINE
- CAS Number:51421-13-7
- Molecular formula:C7H9ClN2
- Molecular Weight:156.61
611-17-6
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Yield:51421-13-7 98 %
Reaction Conditions:
with hydrazine hydrate in ethanol at 60;
Steps:
8.1 Step 1
Hydrazine hydrate (12g, 243mmol) was heated to 60°C, a solution of 2-chlorobromobenzyl (5.0g, 24.3mmol) in ethanol (120mL) was added dropwise, and stirring was continued for 1 hour after the addition was completed.After cooling to room temperature, excess hydrazine hydrate and ethanol were removed by rotary evaporation. The crude product was purified by column chromatography (dichloromethane/methanol=40/1-10/1) to obtain 2-chlorobenzylhydrazine (3.8 g, yield: 98%).
References:
WO2022/258052,2022,A1 Location in patent:Page/Page column 34-35
611-19-8
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89-98-5
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