Reaction of Arylglyoxals with Electron‐Rich Benzenes and π‐Excessive Heterocycles. Facile Synthesis of Heteroaryl α‐Acyloins
作者:Sergey P. Ivonin、Andrey V. Lapandin、Andrey A. Anishchenko、Vasilii G. Shtamburg
DOI:10.1081/scc-120027284
日期:2004.12.31
Abstract The reaction of arylglyoxals and their hydrates with electron‐rich benzenes and π‐excessive heterocycles, if conducted in the absence of catalysts, affords α‐benzoins.
A HFIP-promoted highly selective hydroxyalkylation of aniline derivatives with arylglyoxal hydrates has been realized. The reaction produces various N,N-dialkylanilines and their derivatives with α-hydroxy carbonyl units in good to excellent yields under mild conditions. Furthermore, the synthetic potential of this method has been demonstrated by the facile synthesis of several structurally interesting
Oxidative Cleavage of C<sub>sp<sup>3</sup></sub>–C<sub>sp<sup>2</sup></sub> and C<sub>sp<sup>3</sup></sub>–H Bonds with KO<sup><i>t</i></sup>Bu: Highly Robust and Practical Synthesis of Diaryl/(het-Ar) Ketones
作者:Srinivasarao Yaragorla、Tabassum Khan、Ahalya Behera
DOI:10.1021/acs.joc.2c02519
日期:2023.2.17
report an efficient and practical approach for synthesizing diaryl(het) ketones from R–CO–CHR–Ar through a simultaneous oxidativecleavage of C–C and C–H bonds using KOtBu. This method enables synthesizing a variety of unsymmetrical and symmetrical (hetero)aryl ketones in excellent yields, which are otherwise difficult to make. Besides, we synthesized natural products using this method.
在此,我们报告了一种通过使用 KO t Bu 同时氧化裂解 C-C 和 C-H 键从 R-CO-CHR-Ar 合成二芳基(杂)酮的有效且实用的方法。这种方法能够以优异的收率合成各种不对称和对称(杂)芳基酮,否则很难制备。此外,我们用这种方法合成了天然产物。
Analogs of Amphenone. The Synthesis of Aminosubstituted Diphenylacetones and Related Compounds
作者:John B. Wright、Erwin S. Gutsell
DOI:10.1021/ja01528a043
日期:1959.10
I<sub>2</sub>–CF<sub>3</sub>SO<sub>3</sub>H Synergistic Promoted sp<sup>3</sup> C–H Bond Diarylation of Aromatic Ketones
An I-2-CF3SO3H synergistic promoted sp(3) C-H bond diarylation protocol was developed for the synthesis of 2,2-bis(4-(dimethylamino)phenyl)-1-aryl ethanones. The reaction performed well in the absence of any metal and ligand. It integrated three reactions with different mechanisms (iodination, Kornblum oxidation, and hydroarylation) in a single reactor.