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HRID 544作成日:2026年10月24日

Benzylamine → 4-N-benzyl-2-N-phenylpyridine-2,4-diamine

https://huagongshe.com/ja/reaction/544

反応式

関与物質

役割名称HCID仕込み量
反応物BenzylamineHCID 7504—
反応物4-chloro-N-phenylpyridin-2-amineHCID 23458041—
試薬Sodium t-butoxideHCID 23676156—
触媒Palladium (II) acetateHCID 4144353—
触媒(R)-(-)-1-[(S)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldi-t-butylphosphine;Ferrocene, 1-[(1R)-1-[bis(1,1-dimethylethyl)phosphino]ethyl]-2-(dicyclohexylphosphino)-, (2R)-HCID 144543273—
溶媒DimethylacetamideHCID 31374—
生成物4-N-benzyl-2-N-phenylpyridine-2,4-diamineHCID 10188368849.35%

反応条件

温度100 °C

反応手順

Phenylmethanamine (57.6 mg, 0.54 mmol), 4-chloro-N-phenylpyridin-2-amine (100 mg, 0.49 mmol)-diacetoxypalladium (8.78 mg, 0.04 mmol), (R)-(-)-1-[(S)-2-(DICYCLOHEXYLPHOSPHINO)FERROCENYL]ETHYLDI-T-BUTYLPHOSPHINE (32.5 mg, 0.06 mmol) and sodium 2-methylpropan-2-olate (94 mg, 0.98 mmol) were suspended in DMA (2.00 mL) and sealed into a microwave tube. The reaction was heated thermally to 100 °C for 30 minutes and cooled to RT. The reaction mixture was neutralised with HCl and purified by ion exchange chromatography, using a 20 g SCX column. The crude product was purified by preparative HPLC using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford N4-benzyl-N2-phenylpyridine-2,4-diamine (66.4 mg, 49.4 %) as an off- white solid.

情報源と証拠

出典データセット750 AstraZeneca ELN dataset
ORD IDord-101cdc30e8364adba8cbaa6b2be6e3e8
出典メモ750 AstraZeneca ELN dataset