scholarly journals Cyanide Ligand Assembly by Carbon Atom Transfer to an Iron Nitride

2017 ◽  
Vol 139 (40) ◽  
pp. 14037-14040 ◽  
Author(s):  
Jorge L. Martinez ◽  
Hsiu-Jung Lin ◽  
Wei-Tsung Lee ◽  
Maren Pink ◽  
Chun-Hsing Chen ◽  
...  
2003 ◽  
Vol 46 (10) ◽  
pp. 1047-1056 ◽  
Author(s):  
O. V. Sosnin ◽  
V. V. Tsellermaer ◽  
Yu. F. Ivanov ◽  
V. E. Gromov ◽  
É. V. Kozlov

2002 ◽  
Vol 124 (8) ◽  
pp. 1580-1581 ◽  
Author(s):  
Robert G. Carlson ◽  
Melanie A. Gile ◽  
Joseph A. Heppert ◽  
Mark H. Mason ◽  
Douglas R. Powell ◽  
...  

2017 ◽  
Vol 53 (83) ◽  
pp. 11500-11503 ◽  
Author(s):  
Maximilian Joost ◽  
Matthew Nava ◽  
Wesley J. Transue ◽  
Christopher C. Cummins

An anthracene-based N-isocyanide was synthesized and its reactivity studied. This sensitive compound was structurally characterized as a free species and as a ligand in a ruthenium complex, and underwent C-atom transfer upon treatment with an O-atom donor to evolve CO.


2020 ◽  
Vol 39 (13) ◽  
pp. 2375-2382
Author(s):  
Greggory T. Kent ◽  
Selena L. Staun ◽  
Guang Wu ◽  
Trevor W. Hayton
Keyword(s):  

Author(s):  
M.J. Witcomb ◽  
M.A. O'Keefe ◽  
CJ. Echer ◽  
C. Nelson ◽  
J.H. Turner ◽  
...  

Under normal circumstances, Pt dissolves only a very small amount of interstitial carbon in solid solution. Even so, an appropriate quench/age treatment leads to the formation of stable Pt2C {100} plate precipitates. Excess (quenched-in) vacancies play a critical role in the process by accommodating the volume and structural changes that accompany the transformation. This alloy system exhibits other interesting properties. Due to a large vacancy/carbon atom binding energy, Pt can absorb excess carbon at high temperatures in a carburizing atmosphere. In regions rich in carbon and vacancies, another carbide phase, Pt7C which undergoes an order-disorder reaction was formed. The present study of Pt carburized at 1160°C and aged at 515°C shows that other carbides in the PtxC series can be produced.


2019 ◽  
Author(s):  
Shiori Date ◽  
Kensei Hamasaki ◽  
Karen Sunagawa ◽  
Hiroki Koyama ◽  
Chikayoshi Sebe ◽  
...  

<div>We report here a catalytic, Markovnikov selective, and scalable synthetic method for the synthesis of saturated sulfur heterocycles, which are found in the structures of pharmaceuticals and natural products, in one step from an alkenyl thioester. Unlike a potentially labile alkenyl thiol, an alkenyl thioester is stable and easy to prepare. The powerful Co catalysis via a cobalt hydride hydrogen atom transfer and radical-polar crossover mechanism enabled simultaneous cyclization and deprotection. The substrate scope was expanded by the extensive optimization of the reaction conditions and tuning of the thioester unit.</div>


2020 ◽  
Author(s):  
Shunya Ohuchi ◽  
Hiroki Koyama ◽  
Hiroki Shigehisa

A catalytic synthesis of cyclic guanidines, which are found in many biologically active compounds and natu-ral products, was developed, wherein transition-metal hydrogen atom transfer and radical-polar crossover were employed. This mild and functional-group tolerant process enabled the cyclization of alkenyl guanidines bearing common protective groups, such as Cbz and Boc. This powerful method not only provided the common 5- and 6-membered rings but also an unusual 7-membered ring. The derivatization of the products afforded various heterocycles. We also investigated the se-lective cyclization of mono-protected or hetero-protected (TFA and Boc) alkenyl guanidines and their further derivatiza-tions.


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