Carbanion mechanisms. Part 14. A spectrophotometric study of 4-nitro-, 2,4-dinitro-, and 2,4,6-trinitrobenzyl carbanions. Decarboxylation of (nitrophenyl)acetate anions
Transition-metal-free decarboxylative thiolation of stable aliphatic carboxylates
作者:Wei-Long Xing、De-Guang Liu、Ming-Chen Fu
DOI:10.1039/d1ra00063b
日期:——
transition-metal-free decarboxylative thiolation protocol is reported in which primary, secondary, tertiary (hetero)arylacetates and α-CN substitutedacetates undergo the decarboxylative thiolation smoothly, to deliver a variety of functionalized aryl alkyl sulfides in moderate to excellent yields. Aryl diselenides are also amenable substrates for construction of C–Se bonds under the simple and mild reaction
Decarboxylative Benzylation of Aryl and Alkenyl Boronic Esters
作者:Patrick J. Moon、Anis Fahandej‐Sadi、Wenyu Qian、Rylan J. Lundgren
DOI:10.1002/anie.201800829
日期:2018.4.16
The copper‐catalyzed decarboxylative benzylation of aryl and alkenyl boronicesters with electron‐deficient aryl acetates is reported. The oxidative coupling proceeds under mild, aerobic conditions and tolerates a host of potentially reactive electrophilic functional groups that would be problematic with traditional benzylation methods (aryl iodides and bromides, protic heteroatoms, aldehydes, Michael
Direct Catalytic Decarboxylative Amination of Aryl Acetic Acids
作者:Duanyang Kong、Patrick J. Moon、Odey Bsharat、Rylan J. Lundgren
DOI:10.1002/anie.201912518
日期:2020.1.13
the acid unit to generate isocyanate or radical intermediates. Reported here is a process for the direct chemoselective decarboxylative amination of electron-poor arylacetates by oxidative Cu catalysis. The reaction proceeds at (or near) roomtemperature, uses native carboxylicacid starting materials, and is compatible with protic, electrophilic, and other potentially complicating functionality. Mechanistic