Results 31 to 40 of about 105,861 (299)

Regioselective Access to Sultam Motifs through Cobalt-Catalyzed Annulation of Aryl Sulfonamides and Alkynes using an 8-Aminoquinoline Directing Group [PDF]

, 2015
The use of cobalt as catalyst in direct C[BOND]H activation protocols as a replacement for more expensive second row transition metals is currently attracting significant attention.
Ackermann, Ackermann, Ackermann, Andou, Beletskaya, Bernini, Casitas, Chen, Collins, Corbet, Daugulis, De Santis, Ding, Dong, Gensch, Godula, Grigorjeva, Grigorjeva, Grigorjeva, Guimond, He, Huestis, Hummel, Hyster, Ikemoto, Jia, Jiménez-Hopkins, Kajita, Kaneko, Larock, Lee, Li, Li, Li, Liu, Liu, Lombardino, Lyons, Ma, Majumdar, Merten, Morimoto, Mousseau, Pawar, Pham, Punji, Rakshit, Rassadin, Shah, Shi, Shilov, Shuklov, Song, Song, Stuart, Stuart, Sun, Sun, Suzuki, Tasker, Ueura, Ueura, Umeda, Wells, Wencel-Delord, Wendlandt, Wu, Wu, Wu, Wu, Wu, Yamaguchi, Yeung, Yoshino, Yu, Zhang, Zhang, Zhang, Zhao   +78 more
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A first example of cobalt-catalyzed remote C-H functionalization of 8-aminoquinolines operating through a single electron transfer mechanism [PDF]

, 2016
The development of new C[BOND]H functionalization protocols based on inexpensive cobalt catalysts is currently attracting significant interest. Functionalized 8-aminoquinoline compounds are high-potential building blocks in organic chemistry and ...
Ackermann, Cong, Corbet, Donaldson, Dong, Fors, Galliker, Gandy, Goldstein, Grossi, Guo, Guo, He, Hong, Hu, Iwai, Katayev, Kilpatrick, Kochi, Koley, Liang, Liu, Liu, Maity, Moselage, Nakata, Olah, Ono, Planas, Qiao, Recht, Sahoo, Saito, Seuss, Taniguchi, Wang, Wei, Wei, Williams, Xia, Xu, Yan, Yan, Yoon, Zhang, Zhang, Zhang, Zhao, Zhou, Zhu   +49 more
core   +1 more source

Site-selective functionalization of remote aliphatic C–H bonds via C–H metallation

Chemical Science, 2021
Recent advances in site-selective functionalization of remote aliphatic C–H bonds in organometallic pathways are summarized.
Qi Zhang, Bing-Feng Shi
openaire   +3 more sources

Robust molecular trends in Pd-catalyzed C(sp2/sp3)-H activation reactions – A review

Results in Chemistry, 2021
Direct functionalization of inert C–H bonds into various C-X (X = C, N, O, S) functionalities is one of the frontier research topics and regularly gaining popularities among the communities of scientists by providing opportunities for direct synthesis of
Pravati Panda, Kaushik Pal, Subhendu Chakroborty   +2 more
doaj   +1 more source

Cobalt-catalysed site-selective intra- and intermolecular dehydrogenative amination of unactivated sp3 carbons [PDF]

, 2015
Cobalt-catalysed sp2 C–H bond functionalization has attracted considerable attention in recent years because of the low cost of cobalt complexes and interesting modes of action in the process. In comparison, much less efforts have been devoted to the sp3
Ge, Haibo, Li, Guigen, Sun, Hao, Wu, Xuesong, Yang, Ke, Zhao, Yan   +5 more
core   +1 more source

Direct Functionalization of Nitrogen Heterocycles via Rh-Catalyzed C−H Bond Activation [PDF]

, 2008
Nitrogen heterocycles are present in many compounds of enormous practical importance, ranging from pharmaceutical agents and biological probes to electroactive materials.
Alberico D., Alonso F., Alvarez E., Bellina F., Bercaw J. E., Bergman R. G., Campeau L.-C., Canac Y., Chang L. L., Chatani N., Chen M. S., Chiong H. A., Cho J. -Y., Christ M. L., Clement N. D., Crabtree R. H., Daugulis O., Daugulis O., Diederich F., Do H.-Q., Dwyer C. L., Dyker G., Esteruelas M. A., Ferreira E. M., Gant T. G., Garcia-Cuadrado D., Graczyk P. P., Gribble M., Herrmann W. A., Hillier A. C., Hlasta D. J., Ishiyama T., Jia C. G., Johnson J. B., Kakiuchi F., Kakiuchi F., Kalyani D., Klingler R. J., Kreher R., Larhed M., Lewis J. C., Lewis J. C., Lewis J. C., Lewis J. C., Michael J. P., Miura M., Moore E. J., Netherton M. R., Peters M. W., Pivsa-Art S., Rech J. C., Ritleng V., Stuart D. R., Tan K. L., Tan K. L., Tan K. L., Tan K. L., Tan K. L., Tunge J. A., van Assema S. G. A., Wiedemann S. H., Wiedemann S. H., Wiedemann S. H., Yanagisawa S., Zharekeev B. K.   +64 more
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Site-Selective Functionalization of (sp3 )C-H Bonds Catalyzed by Artificial Metalloenzymes Containing an Iridium-Porphyrin Cofactor. [PDF]

, 2019
The selective functionalization of one C-H bond over others in nearly identical steric and electronic environments can facilitate the construction of complex molecules.
Clark, Douglas S, Gu, Yang, Hartwig, John F, Liu, Zhennan, Natoli, Sean N   +4 more
core   +3 more sources

'Diastereoselective Carbocyclization of 1,6-Heptadienes Triggered by Rhodium-Catalyzed Activation of an Olefinic C-H Bond' [PDF]

, 2014
The use of α,ω‐dienes as functionalization reagents for olefinic carbon–hydrogen bonds has been rarely studied. Reported herein is the rhodium(I)‐catalyzed rearrangement of prochiral 1,6‐heptadienes into [2,2,1]‐cycloheptane derivatives with concomitant ...
Ackermann, Arockiam, Aïssa, Besset, Bray, Bray, Chen, Colby, Colby, Fagnou, Fairlamb, Fujii, Fujii, Fujii, Goj, Grigg, Hayashi, Hilt, Hilt, Hilt, Hiroi, Jun, Kakiuchi, Kakiuchi, Kisanga, Kuhl, Lim, Lim, Lim, Lloyd-Jones, Lyons, Michaut, Mochida, Moreau, Nečas, Ogoshi, Oguma, Okamoto, Pei, Rajanbabu, Rajanbabu, Sato, Shibata, Shibata, Simon, Song, Sun, Trost, Tsai, Tsujita, Ura, Wang, Xu, Yamaguchi, Yamamoto, Yamamoto, Yamamoto, Yamamoto, Yeung   +58 more
core   +1 more source

Recent Advances in the Nickel-Catalyzed Alkylation of C-H Bonds

Molecules
Functionalization of C-H bonds has emerged as a powerful strategy for converting inert, nonfunctional C-H bonds into their reactive counterparts.
Franc Požgan, Uroš Grošelj, Jurij Svete, Bogdan Štefane, Hamad H. Al Mamari   +4 more
doaj   +1 more source

Triorganoindium reagents in Rh-catalyzed C–H activation/C–C cross-coupling reactions of 2-arylpyridines [PDF]

, 2018
[Abstract] The activation of C–H bonds through catalytic reactions using transition metals is an important challenge in organic chemistry in which the intermediates are related to those produced in the classical cross-coupling reactions.
Pérez Sestelo, José, Riveiros, Ricardo, Sarandeses, Luis A., Tato, Rubén   +3 more
core   +2 more sources