The reaction of diarylketones and benzoyltrimethylsilane is mediated by lanthanoidmetals such as ytterbium to give the deoxygenatively acylated product, 1,1-diarylacetophenones in good yields. In the reaction with acetylsilane, the corresponding silyl enol ether was obtained in a moderate yield.
Low-valent titanium induced reductive coupling reaction of carboxylic derivatives with aromatic ketones
作者:Da-qing Shi、Jian-xie Chen、Wen-ying Chai、Wei-xing Chen、Tsi-yu Kao
DOI:10.1016/s0040-4039(00)60493-8
日期:1993.4
The intermolecular and intramolecular coupling reaction of carboxylic derivaties with aromatic ketones induced by titaniumtetrachloride and zinc powder was studied.
One-pot synthesis of α,α-disubstituted Aryl-1-ethanones <i>via</i> the Wittig-Horner reaction
作者:Yunxia Yang、Le Wang、Yuan Chen、Yiru Dai、Zhihua Sun
DOI:10.1080/10426507.2017.1415899
日期:2018.3.4
GRAPHICAL ABSTRACT ABSTRACT A one-pot methodology for the synthesis of α,α-disubstituted aryl-1-ethanones via the Wittig-Horner reaction has been developed and described in this manuscript. Both aryl/alkyl and dialkyl α-branched arylethanone were obtained in high yields (up to 96%) without the use of any metal catalysts. A total of 14 α,α-disubstituted arylethanone derivatives were synthesized based
An efficient regioselective protocol for the C–C bond formation by the unexpected α,α-diarylation of aromatic ketones with unactivated arenes in the presence of seleniumdioxide and boron trifluoride etherate has been developed. The generality and functional tolerance of this protocol is demonstrated by the synthesis of a series of triarylethanones.