期刊
CHEMICAL COMMUNICATIONS
卷 -, 期 38, 页码 4821-4823出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b509366j
关键词
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The first organocatalytic enantioselective alpha-bromination of aldehydes and ketones is presented; a C-2-symmetric diphenylpyrrolidine catalyst afforded the alpha-brominated aldehydes in good yields and up to 96% ee, while ketones were alpha-brominated by a C-2-symmetric imidazolidine in up to 94% ee; furthermore, the organocatalytic enantioselective alpha-iodination of aldehydes is also demonstrated to proceed with up to 89% ee.
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