Zobrazeno 1 - 10
of 405
pro vyhledávání: '"Helfried Neumann"'
Autor:
Rui Sang, Yuya Hu, Rauf Razzaq, Guillaume Mollaert, Hanan Atia, Ursula Bentrup, Muhammad Sharif, Helfried Neumann, Henrik Junge, Ralf Jackstell, Bert U. W. Maes, Matthias Beller
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Using CO2 as C1-feedstock for the chemical industry has attracted great attention. Here the authors develop a two-step cascade process to perform catalytic carbonylations of olefins, alkynes, and aryl halides using CO2 and H2.
Externí odkaz:
https://doaj.org/article/15f77b70d82d411a92cb5cf680b35713
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Exploring benign and green methodologies for the synthesis of functionalized nitriles continues to attract the interest of academic and industrial chemists. Here, the authors efficiently synthesize various aryl, heterocyclic, allylic, and aliphatic n
Externí odkaz:
https://doaj.org/article/19d79eecb9aa47fc844ae1c11aabc837
Publikováno v:
JACS Au, Vol 2, Iss 3, Pp 731-744 (2022)
Externí odkaz:
https://doaj.org/article/ce4d9a015d674a348c5c42a1a5b395c9
Autor:
Matthias Keller, Florian Fischer, Andreas Locher, Helfried Neumann, Christoph Taeschler, Fei Ye, Shaoke Zhang
Publikováno v:
CHIMIA, Vol 75, Iss 11, Pp 923-935 (2021)
Fluoroalkylations have received increasing attention in the academic and industrial environment due to the particular properties of the active ingredients that are strongly influenced by fluoroalkyl substituents. The inherent difficulties of introduc
Externí odkaz:
https://doaj.org/article/e3ed9331d4594928b4007820c51cbb82
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Synthesis of fluorinated organic molecules is of high interest for agrochemistry and pharmaceutics, but efficient and general reagents for introducing -CF2- groups are lacking. Here, the authors report the synthesis of 3,3-difluoropropen-1-yl ammoniu
Externí odkaz:
https://doaj.org/article/92708a3260d249239f5a4d4e1d32b26a
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Synthetic methods aiming at minimizing reaction steps while increasing molecular complexity are highly sought after by organic chemists. Here, the authors report two cascade procedures combining nucleophilic substitution, palladium-catalyzed Heck and
Externí odkaz:
https://doaj.org/article/2c0574cb34a84c768abaae0652b941f7
Autor:
Kathiravan Murugesan, Zhihong Wei, Vishwas G. Chandrashekhar, Helfried Neumann, Anke Spannenberg, Haijun Jiao, Matthias Beller, Rajenahally V. Jagadeesh
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Despite their higher abundance, 3d metal-based catalysts are less investigated than their precious metal counterparts. Here, the authors report a cobalt-triphos complex as molecularly-defined non-noble metal catalyst for the reductive amination of ca
Externí odkaz:
https://doaj.org/article/5ab10d284af5402ab16da0d410af6a0e
Autor:
Thirusangumurugan Senthamarai, Kathiravan Murugesan, Jacob Schneidewind, Narayana V. Kalevaru, Wolfgang Baumann, Helfried Neumann, Paul C. J. Kamer, Matthias Beller, Rajenahally V. Jagadeesh
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-12 (2018)
Synthesis of primary amines via operationally simple, inexpensive and environmentally friendly methodologies has high impact in industrial settings. Here, the authors show a reductive amination process involving a ruthenium catalyst, aldehydes/ketone
Externí odkaz:
https://doaj.org/article/30b3c5ca124944a5a205b7b7aa5dfedb
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
N-methylated amines display high biological activity in living organisms. Here, the authors show the convenient synthesis of a wide range of biologically relevant N-methylamines via reduction of nitrobenzenes using a recyclable iron catalyst and para
Externí odkaz:
https://doaj.org/article/8318295162d94955a313259e9914ae68
Autor:
Kaiwu Dong, Xianjie Fang, Samet Gülak, Robert Franke, Anke Spannenberg, Helfried Neumann, Ralf Jackstell, Matthias Beller
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
The carbonylation of alkenes is tremendously important industrial process, but many substrates are highly challenging. Here the authors report a highly active catalytic system for the alkoxycarbonylation of alkenes that is also general across the ran
Externí odkaz:
https://doaj.org/article/1771de15500b408daae7c6eab52492f5