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HRID 269552作成日:2026年10月24日

Hydrochloric Acid → 2-Benzyloxy-5-trifluoromethylphenylboronic acid

https://huagongshe.com/ja/reaction/269552

反応式

関与物質

役割名称HCID仕込み量
反応物Hydrochloric AcidHCID 313—
反応物Diethyl EtherHCID 3283—
反応物Trimethyl borateHCID 8470—
反応物HCID 21112927HCID 21112927—
反応物HCID 178418918HCID 178418918—
溶媒TetrahydrofuranHCID 8028—
生成物2-Benzyloxy-5-trifluoromethylphenylboronic acidHCID 23005339—

反応条件

温度-75 °C

反応手順

A solution of 4-benzyloxy-3-iodobenzotrifluoride (15.07 g, 39.85 mmol) in tetrahydrofuran (200 ml) was cooled to −40° C. with stirring under nitrogen. 2M isopropylmagnesium chloride in diethyl ether (39.85 ml, 79.7 mmol) was added dropwise and the mixture stirred at −40° C. for 40 minutes, then cooled to −75° C. Trimethyl borate (8.3 g, 9.2 ml, 79.7 mmol) was added at −75° C. over 10 minutes and the reaction stirred and allowed to reach 0° C. over 1 h. 1M hydrochloric acid (200 ml) was added and the mixture stirred vigorously for 1 h.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US07446222B2
出典データセットuspto-grants-2008_11
ORD IDord-d4cc6564f742490e98e35efcb57af4de
出典メモuspto-grants-2008_11