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HRID 520986作成日:2026年10月25日

5-Chloro-2-methylbenzoxazole → Benzoxazole

https://huagongshe.com/reaction/520986

反応式

関与物質

役割名称HCID仕込み量
反応物5-Chloro-2-methylbenzoxazoleHCID 29510—
反応物2-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 11269872—
触媒palladium(II) acetateHCID 167845—
生成物BenzoxazoleHCID 9228—

反応条件

温度100 °C

反応手順

To form 5-vinyl-2-methylbenzoxazole (4aa), the general procedure was followed using 5-chloro-2-methylbenzoxazole (3d) (167 mg, 1.01 mmol), vinyl MIDA boronate (2g) (218 mg, 1.19 mmol), SPhos (42 mg, 0.10 mmol) and Pd(OAc)2 (11 mg, 0.050 mmol). The reaction time and temperature were modified so that the reaction mixture was heated to 100° C. for 2 h. Benzoxazole 4aa was isolated as a pale golden liquid (152 mg, 96%). TLC (hexanes:EtOAc 3:1) Rf=0.46, visualized by UV (254 nm).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US09328102B2
出典データセットuspto-grants-2016_05
ORD IDord-da86b1c1e8ba49c596ea65369b3e6128
出典メモuspto-grants-2016_05