Substituent effects in the oxidation of 2-alkyl-1,4-dialkoxybenzenes with ceric ammonium nitrate
作者:Brian E. Love、Alexander L. Simmons
DOI:10.1016/j.tetlet.2016.11.042
日期:2016.12
Increased steric size of alkyl groups and the presence of coordinating atoms on alkoxy groups have both been found to contribute to decreasing yields of diquinones upon reaction of 2-alkyl-1,4-dialkoxybenzenes with CAN. The overall hydrophilicity of the substrates does not appear to be a significant factor in determining the diquinone yield for these reactions.
Practical C−H Functionalization of Quinones with Boronic Acids
作者:Yuta Fujiwara、Victoriano Domingo、Ian B. Seiple、Ryan Gianatassio、Matthew Del Bel、Phil S. Baran
DOI:10.1021/ja111152z
日期:2011.3.16
quinones with several boronic acids has been developed. This scalable reaction proceeds readily at room temperature in an open flask using inexpensive reagents: catalytic silver(I) nitrate in the presence of a persulfate co-oxidant. The scope with respect to quinones is broad, with a variety of alkyl- and arylboronicacids undergoing efficient cross-coupling. The mechanism is presumed to proceed through
Direct electrochemical synthesis of quinones from simple aromatics and heteroaromatics
作者:Ling Zhang、Youtian Fu、Lei Yang、Liming Cao、Junjun Yi、Maolin Sun、Ruihua Cheng、Yueyue Ma、Jinxing Ye
DOI:10.1039/d3cc01661g
日期:——
of quinones through direct oxidation of widely accessible arenes and heteroarenes under mild conditions. A variety of quinones and hetero quinones were prepared with moderate to good yields, without the involvement of the pre-functionalized substrates. In addition, this atom economic method also exhibits wide functional group tolerance, including C(sp2)–I bond, ester, aldehyde, and OTf groups. This