Facile Synthesis of Sterically Hindered and Electron-Deficient Secondary Amides from Isocyanates
作者:Gabriel Schäfer、Coraline Matthey、Jeffrey W. Bode
DOI:10.1002/anie.201204481
日期:2012.9.3
The big easy: The direct coupling of Grignard reagents to isocyanates provides a facile and robust solution for the synthesis of sterically hindered and electron‐deficient secondary amides. The products are obtained in high yields without the need for excess reagents or chromatographic purification.
C–S Bond Cleavage in Aromatic Sulfide Radical Cations
作者:Osvaldo Lanzalunga
DOI:10.1080/10426507.2012.736108
日期:2013.4.1
Abstract The results of our recent studies of the structural effects on the C–S bond fragmentation process of aromatic sulfur radical cations are reported. GRAPHICAL ABSTRACT
摘要报告了我们最近对芳族硫自由基阳离子的 C-S 键断裂过程的结构影响的研究结果。图形概要
Novel Carboxylic Acid and Carboxamide Protective Groups Based on the Exceptional Stabilization of the Cyclopropylmethyl Cation
作者:Louis A. Carpino、Hann Guang Chao、Shahnaz Ghassemi、E. M. E. Mansour、Christoph Riemer、Ralf Warrass、Dean Sadat-Aalaee、George A. Truran、Hideko Imazumi、Holger Wenschuh、Michael Beyermann、Michael Bienert、Hitesh Shroff、Fernando Albericio、Salvatore A. Triolo、Nuria A. Sole、Steven A. Kates
DOI:10.1021/jo00129a005
日期:1995.12
A Copper-Catalyzed Aerobic [1,3]-Nitrogen Shift through Nitrogen-Radical 4-<i>exo</i>
-trig Cyclization
作者:Yan Li、Rui Wang、Tao Wang、Xiu-Fen Cheng、Xin Zhou、Fan Fei、Xi-Sheng Wang
DOI:10.1002/anie.201709894
日期:2017.11.27
shift catalyzed by copper diacetate under an oxygen atmosphere (1 atm) has been developed for the construction of a diverse range of indole derivatives from α,α‐disubstituted benzylamine. In this reaction, oxygen was used as a clean terminal oxidant, and water was produced as the only by‐product. Five inert bonds were cleaved, and two C−N bonds and one C−C double bond were constructed in one pot during