Practical one-pot preparation of ketones from aryl and alkyl bromides with aldehydes and DIH via Grignard reagents
作者:Souya Dohi、Katsuhiko Moriyama、Hideo Togo
DOI:10.1016/j.tet.2012.05.059
日期:2012.8
groups, such as ester, nitrile, ketone, and nitro groups with i-PrMgCl·LiCl or PhMgCl instead of Mg, also provided the corresponding diaryl and alkyl arylketones in good yields. The above methods are simple and practical transition-metal-free methods for the preparation of various diaryl ketones and alkyl arylketones bearing electron-rich aromatic groups and electron-deficient aromatic groups, as well
通过衍生自芳基或烷基溴化物的格利雅试剂的反应,然后与芳族或脂族醛的反应以及随后用1,3-二碘的处理,可以有效地以高收率高效地制备各种二芳基酮,烷基芳基酮和二烷基酮。一锅法中的-5,5-二甲基乙内酰脲和K 2 CO 3。相同的处理的芳族溴化物轴承吸电子基团,如酯,腈,酮和硝基与我-PrMgCl·LiCl或PhMgCl代替Mg,也以良好的收率提供了相应的二芳基和烷基芳基酮。以上方法是用于制备各种带有富电子芳族基团和缺电子芳族基团的二芳基酮和烷基芳基酮以及二烷基酮的简单且实用的无过渡金属的方法。
Palladium Catalyzed Carbonylative Coupling for Synthesis of Arylketones and Arylesters Using Chloroform as the Carbon Monoxide Source
作者:Poonam Sharma、Sandeep Rohilla、Nidhi Jain
DOI:10.1021/acs.joc.6b02711
日期:2017.1.20
describe a modular, palladium catalyzed synthesis of aryl(hetero)aryl benzophenones and aryl benzoates from aryl(hetero)aryl halides using CHCl3 as the carbonyl source in the presence of KOH. The reaction occurs in tandem through an initial carbonylation to generate an aroyl halide, which undergoes coupling with arylboronic acids, bornonates, and phenols. Direct carbonylative coupling of indoles at the