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-da718e8532d84c04a8a9ec0e3f95b81e

出典データセット

uspto-grants-2010_11

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US07842697B2