Copper-Catalyzed C–H Azidation of Anilines under Mild Conditions
作者:Conghui Tang、Ning Jiao
DOI:10.1021/ja3089907
日期:2012.11.21
A novel and efficient copper-catalyzed azidation reaction of anilines via C-H activation has been developed. This method, in which the primary amine acts as a directing group by coordinating to the metal center, provides ortho azidation products regioselectively undermildconditions. This effective route for the synthesis of aryl azides is of great significance in view of the versatile reactivity
An Intramolecular [2 + 3] Cycloaddition Route to Fused 5-Heterosubstituted Tetrazoles
作者:Zachary P. Demko、K. Barry Sharpless
DOI:10.1021/ol010220x
日期:2001.12.1
[reaction: see text] Fused 5-heterotetrazole ring systems are synthesized in high yield via intramolecular [2 + 3] cycloadditions of organic azides and heteroatom-substituted nitriles. Cyanates, thiocyanates, and cyanamides are all competent dipolarophiles for this reaction. A variety of scaffolds are tolerated when the new enclosed ring is five- or six-membered.
Dehuri, S. N.; Pradhan, P. C.; Nayak, A., Journal of the Indian Chemical Society, 1983, vol. 60, p. 475 - 478
作者:Dehuri, S. N.、Pradhan, P. C.、Nayak, A.
DOI:——
日期:——
Iron-Catalyzed Intermolecular C–N Cross-Coupling Reactions via Radical Activation Mechanism
作者:Subrata Das、Andreas W. Ehlers、Sima Patra、Bas de Bruin、Buddhadeb Chattopadhyay
DOI:10.1021/jacs.3c05627
日期:2023.7.12
aromatic and aliphatic azides with boronic acids under iron-catalyzed conditions. The amination follows an unprecedented metalloradical activation mechanism that is different from traditional metal-catalyzed C–N cross-coupling reactions. The scope of the reaction has been demonstrated by the employment of a large number of tetrazoles, azides, and boronic acids. Moreover, several late-stage aminations