α-Xanthylmethyl Ketones from α-Diazo ketones

IF 2.2 4区 化学 Q2 CHEMISTRY, ORGANIC Synthesis-Stuttgart Pub Date : 2021-05-20 DOI:10.1055/a-1513-9968
L. D. Miranda, Pedro López-Mendoza
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Abstract

Abstract A simple and efficient method to obtain α-xanthylmethyl ketones from α-diazo ketones is described. The reaction proceeds through a protonation/nucleophilic substitution sequence in the presence of p-toluenesulfonic acid and potassium ethyl xanthogenate as the nucleophile. As α-diazo ketones can be readily synthesized from ubiquitous carboxylic acids, a broad variety of xanthates can be obtained, including examples from naturally occurring substrates.
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α-重氮酮衍生的α-黄酮
摘要本文介绍了一种从α-重氮酮中制备α-黄杂基甲基酮的简便高效方法。在对甲苯磺酸和乙基黄原酸钾作为亲核试剂的存在下,反应通过质子化/亲核取代顺序进行。由于α-重氮酮可以很容易地从普遍存在的羧酸中合成,因此可以得到各种各样的黄原酸盐,包括从自然存在的底物中得到的例子。
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来源期刊
Synthesis-Stuttgart
Synthesis-Stuttgart 化学-有机化学
CiteScore
4.50
自引率
7.70%
发文量
435
审稿时长
1 months
期刊介绍: SYNTHESIS is an international full-paper journal devoted to the advancement of the science of chemical synthesis. It covers all fields of organic chemistry involving synthesis, including catalysis, organometallic, medicinal, biological, and photochemistry, but also related disciplines. SYNTHESIS provides dependable research results with detailed and reliable experimental procedures and full characterization of all important new products as well as scientific primary data.
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