期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 34, 页码 11546-11560出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja804159y
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资金
- The Scripps Research Institute
- Amgen
- AstraZeneca
- Beckman Foundation
- Bristol-Myers Squibb
- DuPont
- Eli Lilly
- GlaxoSmithKline
- Pfizer
- Roche
- Searle Scholarship Fund
- Sloan Foundation
- NIH (NIGMS)
This full account presents the background on, discovery of, and extensive insight that has been gained into the oxidative intermolecular coupling of two different carbonyl species. Optimization of this process has culminated in reliable and scalable protocols for the union of amides, imides, ketones, and oxindoles using soluble copper(II) or iron(Ill) salts as oxidants. Extensive mechanistic studies point to a metal-chelated single-electron-transfer process in the case of copper(II), while iron(ill)-based couplings appear to proceed through a non-templated heteroclimerization. This work presents the most in-depth findings on the mechanism of oxidative enolate coupling to date. The scope of oxidative enolate heterocoupling is extensive (40 examples) and has been shown to be efficient even on a large scale (gram-scale or greater). Finally, the method has been applied to the total synthesis of the unsymmetrical lignan lactone (-)-bursehernin and a medicinally important 2,3-disubstituted succinate derivative.
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