https://scholars.lib.ntu.edu.tw/handle/123456789/626354
標題: | Sequential olefination-dimerisation of benzylic dithioacetals by the nickel-catalysed reaction with methyl Grignard or zinc reagent | 作者: | Yu L Lai G.-Q Zhang P Li Z TIEN-YAU LUH |
公開日期: | 2022 | 卷: | 12 | 期: | 16 | 起(迄)頁: | 9653-9659 | 來源出版物: | RSC Advances | 摘要: | Products of main group elements from cross-coupling reactions have been shown to serve as Lewis acids, mediating further reactions of organic coupling products. Thus, the nickel-catalysed olefination of benzylic dithioacetal with MeMgI in benzene in a sealed Schlenk tube at 130 °C generates magnesium mercaptide which regioselectively converts 2-arylpropene into a dimer in good yield. Aryl iodide reacts with 2-propenylmagnesium bromide in the presence of 1,2-ethanedithiol and NiCl2(PPh3)2 to yield the same dimer. Replacement of the Grignard reagent by an organozinc reagent gives the dimers in a better yield. © 2022 The Royal Society of Chemistry. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128711726&doi=10.1039%2fd2ra00841f&partnerID=40&md5=cc2db23a00be2770f01cc833e8a547c6 https://scholars.lib.ntu.edu.tw/handle/123456789/626354 |
ISSN: | 20462069 | DOI: | 10.1039/d2ra00841f | SDG/關鍵字: | Catalysis; Dimers; Nickel compounds; Organometallics; Zinc; Benzylic; Catalyzed reactions; Cross coupling reactions; Dimerizations; Dithioacetals; Grignard reagent; Lewis Acid; Main-group elements; Olefination; Zinc reagents; Nickel |
顯示於: | 化學系 |
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