DL-Homoserine → Methyl homoserinate hydrochloride

A suspension of DL-homoserine (1.00 g, 8.39 mmol) in methanol (40 mL) was placed in an ice bath. Trimethylsilyl chloride (2.34 mL, 18.5 mmol) was added dropwise via syringe. The reaction mixture gradually became homogenous and was further stirred at rt for 14 h, concentrated by rotary evaporation, and further dried under high vacuum. The crude oil thus obtained was used for the next step without further purification. 1H NMR (300 MHz, CD3OD) δ 2.00-2.24 (m, 2H), 3.70-3.80 (m, 2H), 3.85 (s, 3H), 4.12-4.22 (m, 1H). m/z (ESI) 134 [C5H11NO3+H]+.

1. customwas placed in an ice bath
2. concentrationconcentrated by rotary evaporation
3. customfurther dried under high vacuum
4. customThe crude oil thus obtained
5. customwas used for the next step without further purification

ORDレコード

ord-f47771f4bcbf4a4cb5c04eb68ab702d0

出典データセット

uspto-grants-2011_01

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US07875619B2