Results 281 to 290 of about 411,018 (337)

Biosynthesis of Kaitocephalin: A Neuroprotective Natural Product Featuring a Peptide‐Like yet Nonpeptidic Scaffold

Angewandte Chemie, EarlyView.
Kaitocephalin (KCP) is a neuroprotective fungal metabolite with a unique scaffold of amino acids linked via C–C bonds. Genome‐transcriptome analyses identified its biosynthetic gene cluster (kpb cluster) in Eupenicillium shearii. LC‐MS/MS profiling identified four new KCP‐related compounds.
Yukari Maeno, Taro Shiraishi, Naoya Saito, Jun‐ichi Maruyama, Kazuo Shin‐ya, Tomohisa Kuzuyama   +5 more
wiley   +1 more source

Heterologous Production of Torularhodin, the Monocyclic Carotenoid with a Terminal Carboxyl Group, in <i>Escherichia coli</i>. [PDF]

BioTech (Basel)
Takemura M, Maoka T, Misawa N.
europepmc   +1 more source

Photochemical Cyclization of Tertiary Buta‐2,3‐dienamides to β‐Lactams Upon Triplet Energy Transfer

Angewandte Chemie, EarlyView.
Energy transfer is the key to the successful photocyclization of the title compounds to 3,4‐disubstituted 2‐azetidinones. If the substituent at the nitrogen atom is primary (R2 = H), trans products are formed exclusively. The triplet state of xanthen‐9‐one (XT) was found to be quenched by an allene amide (R, R2 = H, R1 = Bn, and R3 = Ph) with a ...
Johannes Hofer, Maria‐Sophie Bertrams, Christoph Kerzig, Thorsten Bach   +3 more
wiley   +1 more source

Aldehyde Electrophilicity and Ring Strain Govern Xylose Acetalization Pathways for Biobased Chemical Production. [PDF]

ChemSusChem
Li ZJ, Patel DM, Sun S, Bourmaud CL, Chen TH, Vlachos DG, Luterbacher JS.   +6 more
europepmc   +1 more source

Chemical Upcycling of Nitrile Butadiene Rubbers to Polyamines and Polyols by Chemoselective Catalytic Hydrogenation

Angewandte Chemie, EarlyView.
We demonstrate here the transformation of NBR (Nitrile butadiene rubber) including post‐consumer waste sourced from nitrile gloves and o‐rings into polyamines and polyols via ruthenium catalyzed hydrogenation. ABSTRACT We report here two new approaches for the chemical recycling/upcycling of nitrile butadiene rubber (NBR) to make either polyamines or ...
Alejandra Sophia Lozano Perez, Raymundo Marcial‐Hernandez, Harini Sampathkumar, Oluchi Emenike, Ketan Pancholi, Claire N. Brodie, Daniel M. Dawson, Amit Kumar   +7 more
wiley   +1 more source

Study on Phase I Metabolic Processes and Metabolite Biomarker Identification of Synthetic Cannabinoids 5F-ADB-PINACA and 5F-ADBICA in Human Liver Microsomes and Zebrafish Model. [PDF]

Molecules
Li H, Zheng H, Zhong S, Zhao Y, Lin J, Su H, Qian Z, Wang Y.   +7 more
europepmc   +1 more source

Aryl and Alkyl Radiotrifluoromethylation via Metallaphotoredox‐Mediated Radical Cross‐Coupling

Angewandte Chemie, EarlyView.
The metallaphotoredox‐mediated radiotrifluoromethylation of arenes and alkanes is described. The operationally simple protocols make use of substrates bearing thianthrenium salts (TT) or N‐hydroxyphthalimide (NHPI) esters and CF218FI. The reaction proceeds through a Ru‐mediated radical formation followed by a Cu‐mediated radical cross‐coupling step and
Lukas Veth, Albert D. Windhorst, Danielle J. Vugts   +2 more
wiley   +1 more source

Electrolysis-Assisted Reduction of Dimethylformamide for Unactivated Alkene Functionalizations. [PDF]

J Am Chem Soc
Xi Y, Sharma S, Kappe CO, Laudadio G.
europepmc   +1 more source

EnantioselectiveOrganophotocatalytic α‑Functionalizationof Aldehydes with N‑Lactam Radicals: A ViableStrategy for the Telescoped Synthesis of Levetiracetam

Eleonora Colombo (5141723), Monica Fiorenza Boselli (21807268), Marco Fattalini (21807271), Valerio Chiroli (1883221), Sergio Rossi (737191), Maurizio Benaglia (1553602), Alessandra Puglisi (1883224)   +6 more
openalex   +1 more source

Chiral Heptagon‐Embedded Double [6]Helicenes via Scholl Reaction

Angewandte Chemie, EarlyView.
One bond makes the difference–two chiral and twisted polycyclic aromatic hydrocarbons (PAHs) show different emission behavior. The more flexible one (top) shows a double emission with one having a large anti‐Stokes shift. The two peaks are assigned to different conformers of one and the same compound.
Dan Wang, Philipp Penert, Lars Schneider, Moritz P. Schuldt, Frank Rominger, Felix Deschler, Michael Mastalerz   +6 more
wiley   +1 more source