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HRID 1391160作成日:2026年10月26日

Acetic Anhydride → 1-Chloro-4-acetoxy-4-methylnonane

https://huagongshe.com/reaction/1391160

反応式

関与物質

役割名称HCID仕込み量
反応物Acetic AnhydrideHCID 7918—
反応物1-BromopentaneHCID 8057—
反応物2-Pentanone, 5-chloro-HCID 79993—
反応物MagnesiumHCID 5462224—
溶媒WaterHCID 962—
溶媒Diethyl EtherHCID 3283—
生成物1-Chloro-4-acetoxy-4-methylnonaneHCID 20386091—

反応条件

温度25 °C

反応手順

To the Grignard reagent prepared from 1-bromopentane (4.8 g., 0.04 mole) and magnesium (0.96 g., 0.04 mole) in ether is added 5-chloro-2-pentanone (6.0 g., 0.04 mole). The reaction mixture is stirred at 25° C. for 1 hour and then cooled to 15° C. Acetic anhydride (6 ml., excess) is added carefully and the solution is allowed to stand for 20 hours. Water is added, and the ether layer is separated, washed with brine, and dried over sodium sulfate, Distillation affords the title compound in 4.3 g. (46%) yield, b.p. 88° C. (0.1 mm.).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US04140861
出典データセットuspto-grants-1979_02
ORD IDord-7cbb35c9a0b543e6bfcc282af2a95fb0
出典メモuspto-grants-1979_02