Fox, Peter Choi, Jeongin Johnson, Erin Stradiotto, Mark
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
We disclose herein our evaluation of competitive (hetero)aryl-X (X: Br > Cl > OTf) reactivity preferences in bisphosphine/Ni-catalyzed C-N cross-coupling catalysis, using furfurylamine as a prototypical nucleophile, and employing DalPhos and DPPF as representative ancillary ligands with established efficacy. Beyond this general (pseudo)halide ranki...
Niu, Weijing Liu, Jiaqi Duan, Yuwei Zhong, Lin Pang, Linlin Zhong, Guannan Zhang, Youming Bian, Xiaoying
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Non-ribosomal peptide synthetases (NRPSs) and their tailored enzymes have diverse biological functions. In this study, we investigated the biosynthesis and function of chitinimides, which belong to the non-ribosomal peptide (NRP) subfamily featuring a pyrrolidine-containing part (X part) connected to the polypeptide chain via an ester bond. A conse...
Shit, Manik Mahapatra, Manas Sepay, Nayim Sinha, Chittaranjan Dutta, Basudeb Mir, Mohammad Hedayetullah
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Herein, we report the synthesis of a Mn(II)-based coordination polymer (CP); and its structure, phase consistency and thermal stability have been established by single-crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD) and thermalgravimetric analysis (TGA) respectively. This is the first example of paramgnetic Mn(II)-based CP that a...
Fischer, Lukas Hoffmann, Kurt F Hasenstab-Riedel, Sebastian
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Chemistry (Weinheim an der Bergstrasse, Germany)
The Lewis superacid Ga(OTeF5)3 has been synthesized and characterized, revealing a monomeric structure in solution and a dimeric structure in the solid state. Isolated adducts of Ga(OTeF5)3 with strong and weak Lewis bases have been characterized spectroscopically as well as single-crystal X-ray diffractometry. The Lewis acidity of this new species...
Restaino, Lorenzo Mincigrucci, Riccardo Kowalewski, Markus
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
The addition of Grignard reagents to ketones is a well-established textbook reaction. However, a comprehensive understanding of its mechanism has only recently begun to emerge. X-ray spectroscopy, because of its high selectivity and sensitivity, is the ideal tool for distinguishing between an ensemble of competing pathways. With this aim in mind, w...
Sharma, Vikas Khan, Hassan Walker, Michael Ahmad, Hamid Anmol, Anmol Marszalek, Tomasz Schollmeyer, Dieter Baumgarten, Martin Evans, Emrys W Keerthi, Ashok
...
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Since its first synthesis by Clar in 1948, terrylene - a fully connected ternaphthalene oligomer via naphthalene's peri-positions - has gained special focus within the rylene family, drawing interest for its unique chemical, structural, optoelectronic and single photon emission properties. In this study, we introduce a novel synthetic pathway that ...
Balaso Mohite, Sachin Kousin Mirza, Yafia Kumar, Vishal Partap, Sangh Baji Baba, Shaik Alake, John Bera, Milan Karpoormath, Rajshekhar
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
The advancement of sustainable chemistry and changes in the economy are strongly intertwined. Reaction time, cost savings, moderate temperatures, and generation of the fewest byproducts are frequently achieved by using catalytic processes. Herein, we report the C-H olefination of imidazo[1,2a] pyridine carboxamides with various acrylates in the pre...
Zhang, Wei Pinna, Nicola
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Metal Organic Frameworks (MOFs) are organic-inorganic hybrid materials with exceptionally customizable composition and properties. MOFs intrinsically possess open metal sites, tunable pore size/shape and an ultra-large specific surface area, and have obtained significant attention over the past 30 years. Furthermore, through the integration of func...
Inoue, Kengo Mori, Atsunori Okano, Kentaro
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Lochmann-Schlosser base, a stoichiometric combination of nBuLi and KOtBu, is commonly used as a superbase for deprotonating a wide range of organic compounds. In the present study, we report that catalytic potassium hexamethyldisilazide (KHMDS) exhibits higher catalytic activity than KOtBu for successive bromine-metal exchanges. Accordingly, 1-10 m...
Li, Minghong Huang, Fang Zhang, Ping Xiong, Ying Zhang, Yaping Li, Fei Chen, Lin
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Based on our previous study in chemical subtleties of the proton tunneling distance for metal hydride formation (PTD-MH) to regulate the selectivity of CO2 reduction reaction (CO2RR), we have developed a family of Mn terpyridine derivatives, in which urea groups functions as multipoint hydrogen-bonding hangman to accelerate the reaction rate. We fo...
