Catalysis by metals (Bond, G. C.)
نویسندگان
چکیده
منابع مشابه
Quasi-nature catalysis: developing C-C bond formations catalyzed by late transition metals in air and water.
This Account outlines the recent efforts of developing catalysis under the ambient conditions of air and water for synthetic purposes from the author's laboratory. The discussions are focused on catalytic reactions (mostly C-C bond formations) other than oxidations via late transition metals. It includes the following aspects: (1) copper-catalyzed C-C bond formations; (2) palladium-catalyzed C-...
متن کاملSelective Carbonyl-C(sp3 ) Bond Cleavage To Construct Ynamides, Ynoates, and Ynones by Photoredox Catalysis.
Carbon-carbon bond cleavage/functionalization is synthetically valuable, and selective carbonyl-C(sp3 ) bond cleavage/alkynylation presents a new perspective in constructing ynamides, ynoates, and ynones. Reported here is the first alkoxyl-radical-enabled carbonyl-C(sp3 ) bond cleavage/alkynylation reaction by photoredox catalysis. The use of novel cyclic iodine(III) reagents are essential for ...
متن کاملC–F and C–C Bond Activation by Transition Metals in Low Energy Atomic Ion/Surface Collisions
The transition metal ions, Cr , Mo , W and Re, abstract one or more fluorine atoms or CmFn groups (m = 1,2; n = 1–5) in collisions with fluorocarbon self-assembled monolayers (F-SAMs). The number of atoms abstracted increases with collision energy, and with W and Re it is possible to maximize a specific scattered product ion by selecting the appropriate collision energy. The collision ene...
متن کاملCarbon–hydrogen (C–H) bond activation at PdIV: a Frontier in C–H functionalization catalysis
The direct functionalization of carbon-hydrogen (C-H) bonds has emerged as a versatile strategy for the synthesis and derivatization of organic molecules. Among the methods for C-H bond activation, catalytic processes that utilize a PdII/PdIV redox cycle are increasingly common. The C-H activation step in most of these catalytic cycles is thought to occur at a PdII centre. However, a number of ...
متن کاملNew technologies in catalysis using base metals*
Formation of C–C, C–N, and C–H bonds using three heterogeneous catalysts in the form of nickel-in-charcoal (Ni/C), nickel-on-graphite (Ni/Cg), and copper-in-charcoal (Cu/C) are described.
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1963
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed040pa146