Results 31 to 40 of about 205,218 (235)

Strategies to transform remote C(sp3)-H bonds of amino acid derivatives

Tetrahedron Chem, 2022
Amino acids and peptides play an important role in nature as well as in the pharmaceutical industry. Therefore, transformation of amino acids and peptides into their unnatural derivatives via step and atom economical ways is highly demanding. Although, a
Supreeta Sen, Jayabrata Das, Debabrata Maiti   +2 more
doaj   +1 more source

Efficient direct 2,2,2-trifluoroethylation of indoles via C-H functionalization [PDF]

, 2015
A novel highly C3 selective metal free trifluoroethylation of indoles using 2,2,2-trifuoroethyl(mesityl)-iodonium triflate was developed. The methodology enables the introduction of a trifluoroethyl group in a fast and efficient reaction under mild ...
Bihari, Tamás, Daru, János, Gáti, T., Makó, Z., Novák, Zoltán, Stirling, András, Székely, A., Tolnai, Gergely László   +7 more
core   +1 more source

Transition-metal-catalyzed aromatic C–H functionalization assisted by the phosphorus-containing directing groups

Green Synthesis and Catalysis, 2023
Transition-metal-catalyzed C–H bond functionalization has attracted tremendous attention as an increasingly important protocol for the construction of C–C and C–X bonds.
Jian Zhang, Lingyun Yao, Jia-Yi Su, Yang-Zi Liu, Quannan Wang, Wei Ping Deng   +5 more
doaj   +1 more source

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

C-H Functionalization via Iron-Catalyzed Carbene-Transfer Reactions

Molecules, 2020
The direct C-H functionalization reaction is one of the most efficient strategies by which to introduce new functional groups into small organic molecules.
Claire Empel, Sripati Jana, Rene M. Koenigs   +2 more
doaj   +1 more source

Copper-Catalyzed Regioselective Ortho C-H Cyanation of Vinylarenes [PDF]

, 2014
A copper-based catalytic technique for the regioselective ortho C-H cyanation of vinylarenes has been developed. This method provides an effective means for the selective functionalization of vinylarene derivatives.
Albrecht, Anbarasan, Anbarasan, Ariafard, Bao, Beller, Berthod, Brunel, Bruno, Caddick, Chaitanya, Chen, Chopade, Colby, Corberán, Dang, Daugulis, Davies, Demko, Dong, Engle, Gandeepan, Gong, Grigg, Ito, Jun, Kakiuchi, Kalyani, Kubota, Kurzer, Kurzer, Laitar, Larock, Lee, Lillo, Liu, Matsuda, Mkhalid, Neufeldt, Tobisu, Trost, van Otterlo, Wendlandt, Wolfe, Xie, Yang, Yeung, Zhang, Zhong, Zhu, Zhu   +50 more
core   +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

Exo-hydrogenated Single Wall Carbon Nanotubes

, 2001
An extensive first-principles study of fully exo-hydrogenated zigzag (n,0) and armchair (n,n) single wall carbon nanotubes (C$_n$H$_n$), polyhedral molecules including cubane, dodecahedrane, and C$_{60}$H$_{60}$ points to crucial differences in the ...
A.C. Dillon, B.S. Hudson, C. Liu, C.C. Ahn, C.M. Brown, D. Vanderbilt, H.J. Monkhorst, J.P. Perdew, K. Tada, M.C. Payne, M.I. Attalla, M.S. Dresselhaus, M.S. Dresselohaus, N. Hamada, O. Gülseren, P. Chen, P.E. Eaton, Qinyu Wang, R.C. Gordillo, S. Ciraci, S. Iijima, S. Iijima, T. Guo, T. Yildirim, T. Yildirim, T. Yildirim, T. Yildirim, V.V. Simonyan, Y. Ma, Ç. Kílíç   +29 more
core   +2 more sources

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

Lifestyle Behaviors and Cardiotoxic Treatment Risks in Adult Childhood Cancer Survivors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Higher doses of anthracyclines and heart‐relevant radiotherapy increase cardiovascular disease (CVD) risk. This study assessed CVD and CVD risk factors among adult childhood cancer survivors (CCSs) across cardiotoxic treatment risk groups and examined associations between lifestyle behaviors and treatment risks.
Ruijie Li, Raquel Revuelta Iniesta, Alan R. Barker, Dimitris Vlachopoulos, Tomáš Sláma, Christina Schindera, Fabiën N. Belle   +6 more
wiley   +1 more source