Convenient preparation of acyltrimethylsilanes from carboxylic acid derivatives
β Scribed by Kang Jahyo; Lee Jae Hyoung; Kim Koan Seong; Jeong Jae Uk; Pyun Chongsuh
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- French
- Weight
- 137 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0040-4039
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Pictet-Spengler condensation of dopamine with (+)-menthyl pyruvate afforded a diastereomeric mixture of menthyl salsolinol-l-carboxylate, from which pure diastereomer was isolated by repeated recrystallizations in ca. 20% yield. Acid hydrolysis of the menthyl ester furnished (-)-(R)-salsolinol-l-car
## Abstract magnified image Reduction of the Michael addition products of anions of nitro compounds to dimethyl maleate led to the spontaneous formation of the respective 2βalkylβ5βoxopyrrolidineβ3βcarboxylic acid methyl esters. Conventional hydrolysis of the later gave the desired compounds.