<i>n</i>Bu<sub>4</sub>NI-Catalyzed α-Benzoxylation of Ketones with Terminal Aryl Alkenes
作者:Buddhadeb Mondal、Subas Chandra Sahoo、Subhas Chandra Pan
DOI:10.1002/ejoc.201500233
日期:2015.5
A metal-free protocol for the α-benzoxylation of ketones has been developed by using terminalarylalkenes as an arylcarboxy surrogate. Moderate to good yields were attained for a variety of propiophenones and acetophenones by using tetra-n-butylammonium iodide (TBAI) as the catalyst and tert-butyl hydroperoxide (TBHP) as the oxidant under ambient reaction conditions.
Merging Photocatalytic C–O Cross-Coupling for α-Oxycarbonyl-β-ketones: Esterification of Carboxylic Acids via a Decarboxylative Pathway
作者:Soumya Mondal、Subal Mondal、Siba P. Midya、Suman Das、Sahidul Mondal、Pradyut Ghosh
DOI:10.1021/acs.orglett.2c04041
日期:2023.1.13
the first merged photocatalytic pathway for the C–O cross-coupled esterification of carboxylic acids to α-oxycarbonyl-β-ketones has been demonstrated. Decarboxylation of α,β-unsaturated acids promotes the formation of the β-ketone fragment of the desired product. Water as the source of oxygen for the ketone segment and aerial oxygen as an oxidant make the present synthetic methodology green and sustainable
在此,已经证明了羧酸的 C-O 交叉偶联酯化为 α-氧羰基-β-酮的第一个合并光催化途径。α,β-不饱和酸的脱羧促进所需产物的 β-酮片段的形成。水作为酮段的氧源和空气中的氧作为氧化剂使目前的合成方法绿色且可持续。这种新的 C=O 和 C-O 键形成方法在双重 Ir/Pd 催化途径下以级联方式发生,H 2 O 和 CO 2的释放是唯一的副产物。
HUANG, ZHIZHEN;XIE, LINGHONG;HUANG, XIAN, SYNTH. COMMUN., 18,(1988) N 10, 1167-1170
I<sub>2</sub>/TBHP-mediated oxidative coupling of ketones and toluene derivatives: a facile method for the preparation of α-benzoyloxy ketones
作者:Cui Chen、Weibing Liu、Peng Zhou、Hailing Liu
DOI:10.1039/c7ra02298k
日期:——
An efficient oxidative approach was developed for the α-benzoyloxylation of ketones using tert-butyl hydroperoxide (TBHP). This process provided facile access to a wide range of α-benzoyloxy ketones in good to excellent yields via the direct oxidative α-benzoyloxylation of a structurally diverse series of ketones using simple arylmethane compounds.