Acyl hydrazides as acyl donors for the synthesis of diaryl and aryl alkyl ketones
作者:Ahmed R. Akhbar、Vijay Chudasama、Richard J. Fitzmaurice、Lyn Powell、Stephen Caddick
DOI:10.1039/c3cc47967f
日期:——
In this communication we describe a novel strategy for the formation of valuable diaryl and arylalkylketones from acyl hydrazides. A wide variety of ketones are prepared and the mild reaction conditions allow for the use of a range of functionalities, especially in the synthesis of diaryl ketones.
Palladium-Catalyzed Intermolecular Hydroamination of Alkynes: A Dramatic Rate-Enhancement Effect of <i>o</i>-Aminophenol
作者:Tomohiro Shimada、Yoshinori Yamamoto
DOI:10.1021/ja027683y
日期:2002.10.1
The hydroamination of alkynes using o-aminophenol proceeds in very high to good yields in the presence of Pd(NO3)2 catalyst. Remarkable rate enhancement with o-aminophenol is presumably due to the chelation effect of the ortho OH group to palladium.
Direct couplings of secondary alcohols with primary alkenyl alcohols to α-alkylated ketones via a tandem transfer hydrogenation/hydrogen autotransfer process catalyzed by a metal-ligand bifunctional iridium catalyst
作者:Xiangchao Xu、Shun Li、Shiyuan Luo、Jiazhi Yang、Feng Li
DOI:10.1016/j.jcat.2022.06.029
日期:2022.9
A new strategy for the synthesis of α-alkylated ketones from secondary alcohols and primary alkenyl alcohols via a tandemtransferhydrogenation/hydrogen autotransfer process was proposed and successfully accomplished. Mechanistic experiments supported that functional groups in bpy ligand are crucial for the transferhydrogenation and hydrogen autotransfer process. Furthermore, the utilization of the