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HRID 635生成日期:2026年10月23日

哌嗪 → tert-butyl N-[2-chloro-5-(piperazin-1-yl)phenyl]carbamate

https://huagongshe.com/zh-CN/reaction/635

反应方程式

参与物

角色名称HCID投料
反应物哌嗪HCID 4837—
反应物tert-butyl N-(5-bromo-2-chlorophenyl)carbamateHCID 57840526—
试剂碳酸氢铯HCID 10796—
催化剂1,1'-联萘-2,2'-双二苯膦 (BINAP)HCID 634876—
催化剂醋酸钯HCID 4144353—
溶剂甲苯HCID 1140—
产物tert-butyl N-[2-chloro-5-(piperazin-1-yl)phenyl]carbamateHCID 5784040957.11%

反应条件

温度110 °C

反应步骤

palladium(II) acetate (0.110 g, 0.49 mmol), BINAP (0.244 g, 0.39 mmol) and CS2CO3 (1.594 g, 4.89 mmol) were added to a mixture of [Reactants] and piperazine (2.76 g, 32.10 mmol) in toluene (10 mL), The suspension were heated to 110 °C for 16 hours, LCMS showed product mass [M+1]:312.0 at retention time RT=1.69 min (polar short purity method). Workup reaction by additional of water (10mL), extracted with EtOAc (3x20 mL), washed with brine, dried with Na2SO4, evaporated off solvent to give a residue, which was purified by isco chromatographer, eluting with 0-10% MeOH in DCM to give as a yellow solid. LCMS confirmed the target compound.

来源与证据

来源数据集750 AstraZeneca ELN dataset
ORD IDord-839e83634a9943b98e2511e3c8112ffb
来源说明750 AstraZeneca ELN dataset