Visible-Light-Induced Difunctionalization of Styrenes: An Efficient and Green Protocol for the Synthesis of β-Acyloxyselenides

3in 1: A visible-light-induced protocol for the synthesis of β-acyloxyselenides via a difunctionalization of styrenes with a binary system of diaryldiselenides and carboxylic acids is described, providing efficient and green approach to β-acyloxyselenides. A broad range of styrene derivatives and carboxylic acids were tolerated, and all the desired products were obtained in moderate to excellent yields.

[Communications]
Dr. Jinyang Chen, Rui Chen, Lan Mei, Shanshu Yan, Dr. Yan Wu, Dr. Qiang Li, Dr. Binfang Yuan
doi.org/10.1002/ajoc.201900676

Preparation of Enantiomerically Pure β,β-Diaryl β-Hydroxy-α-Amino Acids and Evaluation of Their Potential as Organocatalysts

Amino acids: A general synthetic procedure was developed for enantiomerically pure β,β-diaryl β-hydroxy-α-amino acids 5, starting from readily available oxazolidine ester 1 and a wide variety of Grignard reagents. Additionally, the organocatalytic ability of β,β-diaryl β-hydroxy-α-amino acids 5 was evaluated with respect to asymmetric fluorination of 2-phenylpropionaldehyde.

[Full Papers]
Prof. Satoru Arimitsu, Koki Oshiro, Katsuki Endo, Emi Gima, Samira Poorsadeghi
doi.org/10.1002/ajoc.201900694

Modulating Iron Spin States with Radical Ligands: A Density Functional Theoretical Study

Ground state electronic structures for the square pyramidal complexes [FeIIIX(LISQ)2]0 (X=F, Cl, Br, I, N3, NCS) with two o-iminobenzosemiquinonato π-radical ligands have been calculated using DFT. Using the B3LYP* functional with 15% Hartree-Fock exchange, the iron spin state, which is dependent on the nature of the X ligand, was accurately reproduced and highlight the importance of having an experimentally validated computational protocol.

[Full Papers]
Ludovica Credendino, Dr. Stephen Sproules
doi.org/10.1002/ajoc.201900626

RhIII-Catalyzed Synthesis of Highly Substituted 2-Pyridones using Fluorinated Diazomalonate

Straightforward synthesis: Highly substituted C4-arylated 2-pyridones were synthesized using oximes and fluorinated diazomalonate under RhIII-catalyzed conditions. The utility of bis(2,2,2-trifluoroethyl) 2-diazomalonate was explored for this straightforward tandem method.

[Communications]
Dr. Debapratim Das, Gopal Sahoo, Aniruddha Biswas, Dr. Rajarshi Samanta
doi.org/10.1002/asia.201901620

Pd-Iminocarboxylate Complexes and Their Behavior in Ethylene Polymerization

One step ahead: A one-step synthesis of four iminocarboxylate ligands and their palladium complexes is reported. The reactivity of these new, co-catalyst-free, single-component catalytic systems towards ethylene is unraveled.

[Full Papers]
Dr. Satej S. Deshmukh, Dr. Shahaji R. Gaikwad, Dr. Rajesh G. Gonnade, Satish P. Pandole, Dr. Samir H. Chikkali
doi.org/10.1002/asia.201901501

Magnetic Relaxation Studies on Trigonal Bipyramidal Cobalt(II) Complexes

Under the counter: The counter anion together with subtle structural changes in the coordination sphere slow down the magnetic relaxation time in trigonal bipyramidal CoII complexes.

[Full Papers]
Dr. Feng Shao, Dr. Benjamin Cahier, Dr. Yi-Ting Wang, Dr. Feng-Lei Yang, Dr. Eric Rivi�re, Dr. R�gis Guillot, Prof. Nathalie Guih�ry, Dr. Jia-Ping Tong, Prof. Talal Mallah
doi.org/10.1002/asia.201901511

Facile Synthesis of Pd−Cu Bimetallic Twin Nanocubes and a Mechanistic Understanding of the Shape Evolution

A facile synthesis of Cu twin cubes from seeds based on Pd hexagonal nanoplates is demonstrated herein. The lattice mismatch, capping agent, and number of planar defects in the seeds all play important roles in directing the shape evolution of Cu on the Pd seeds. By tuning the reaction condition, this synthetic protocol could also be extended to other bimetallic systems such as Pd−Ag.

[Full Papers]
Yifeng Shi, Zhiheng Lyu, Prof. Jingyue Liu, Emily Chase, Prof. Younan Xia
doi.org/10.1002/cnma.201900653

A Simple And Green Preparation Method Of Nitrogen-Doped Carbon Nanocages For Supercapacitor Application

Nitrogen-doped carbon nanocages (NCNCs) were prepared by a facile ball milling route. Due to high nitrogen doping (9.3 at %) and cage-like nanostructures, carbon nanocages prepared at 800 °C exhibit high specific capacitance (251 F g−1), good rate performance (201 F g−1 at 10 A g−1) and cyclic stability (capacitance retention is 97.5% after 5000 cycles).

[Full Papers]
Dr. Liang Jiang, Shuhan Yang, Wenna Song, Dr. Jianhua Zhao, Prof. Dr. Zhihua Lu, Dr. Qianqian Zhai, Dr. Jing Wang
doi.org/10.1002/cnma.201900629