Transition Metal‐Free Heteroarene Insertion Into C─C Bonds of Benzocyclobutenones
Angewandte Chemie, EarlyView.A transition metal‐free insertion of five‐membered heteroarenes into the C─C bonds of benzocyclobutenones has been achieved under mild and operationally simple conditions. This method provides an efficient and modular approach to access fused partially saturated hetero‐polycyclic scaffolds that exist in many bioactive molecules.
Cole J. Wagner, Guangbin Dong
wiley +2 more sources
Angewandte Chemie, EarlyView.Masked divalent yttrium and gadolinium dinitrogen complexes mediate the fragmentation of white phosphorus, converting P4 into discrete dimetallic complexes of [P4]2– and [P2]2– ligands, and an unprecedented monatomic P2– radical ligand. Structural, spectroscopic, magnetic, and DFT studies reveal insight into the bonding between these unusual Pn units ...
Arpan Mondal, Richard A. Layfield
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1,7‐Digallatetracarborane: Between Nucleophilic closo‐Cluster and “Inverse Sandwich” Digallylene
Angewandte Chemie, EarlyView.A dianionic π‐ligand is used to make a Janus‐type twofold complex with low‐valent gallium Ga(+I). The resulting compound can be seen as and reveals the reactivity of both: a Wade‐type closo‐carborane cluster with nucleophilic Ga‐sites, as well as π‐ligand stabilized Ga(I) atoms in an inverse sandwich compound.
Julijan Sarcevic +4 more
wiley +2 more sources
Coordination‐Driven Direct C─H Metalation of N‐Heterocycles With a Superbasic Co(II) Amide Co(TMP)2
Angewandte Chemie, EarlyView.By enabling regioselectivities that are inaccessible with conventional bases, this study introduces a Co(II) amide platform for the deprotonative C─H metalation of sensitive N‐heterocycles. Subsequent interception of the resulting Co(II) intermediates with external oxidants affords a family of sterically congested, TMP‐substituted heterocycles via C─N ...
Na Jin +3 more
wiley +2 more sources
Mechanistic studies of the copper-dependent quercetin 2,3-dioxygenase from A. japonicus : X-ray crystallography, spectroscopy and theoretical calculations [PDF]
, 2002 Dioxygenases are enzymes that catalyse reactions in which both atoms of molecular oxygen (O2) are incorporated into organic substrates. These enzymes play a key role in the degradation of numerous aromatic and heteroaromatic molecules.
Steiner, Roberto Alfredo, +1 more
core
Dual Activation of H2 and CO2 by a Pincer‐Type Ni–Zn Heterobimetallic Complex
Angewandte Chemie, EarlyView.A bimetallic Ni−Zn complex performs sequential activations of H2 (1 equiv) and CO2 (2 equiv). This bimetallic cooperativity is attributed to the weak Lewis acidic nature of Zn(II), which promotes fluxional ligand binding. Namely, an X‐type ligand at Ni, where X is hydride or formate, toggles between two different binding modes: bridging Zn(μ‐X)Ni and ...
Krishnendu Dey +3 more
wiley +2 more sources
, 2011 The present Ph.D. thesis has focused on tetrameric hemoglobins (Hbs), both recombinant and natural, both from human origin and Antarctic fish, using a multidisciplinary approach based on spectroscopic, crystallographic and computational techniques.
Balsamo, Anna
core
A study of the organometallic chemistry of aluminium, gallium and idium [PDF]
This thesis describes a study of several aspects of the organometallic chemistry of aluminium, gallium and indium. A study has been carried out on the products obtained from the reactions of trimethyl- and triethyl-metal derivatives of aluminium ...
Phillips, Paul Richard
core
Protein Structure Determination by Racemic and Quasi-Racemic X-Ray Crystallography. [PDF]
ChembiochemKent SBH.
europepmc +1 more source
Structural insights into urocanate reductase using room-temperature X-ray crystallography. [PDF]
Acta Crystallogr D Struct BiolAggarwal S +4 more
europepmc +1 more source