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HRID 254248作成日:2026年10月26日

Hydrazine hydrate (1:1) → 5-Bromopyridine-2-carbohydrazide

https://huagongshe.com/reaction/254248

反応式

関与物質

役割名称HCID仕込み量
反応物Hydrazine hydrate (1:1)HCID 24654—
反応物Methyl 5-bromopyridine-2-carboxylateHCID 7016458—
溶媒MethanolHCID 887—
生成物5-Bromopyridine-2-carbohydrazideHCID 23467938—

反応手順

5-Bromo-pyridine-2-carboxylic acid methyl ester (J. Org. Chem., 2001, 66(2), 605-608, compound 4) (18.10 g, 83 mmol) and hydrazine monohydrate (12.5 mL, 250 mmol) were dissolved in methanol (400 mL) and the reaction mixture heated to reflux for 48 hours. The reaction mixture was then filtered and the precipitate collected dried in vacuo to yield the title product, 15.40 g.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US07875615B2
出典データセットuspto-grants-2011_01
ORD IDord-cabaad21c61a4c72b741a6c4de69f450
出典メモuspto-grants-2011_01