Results 221 to 230 of about 187,119 (306)

Katalysatoraktivierung als Schlüsselfaktor in Kreuzkupplungen: Raumtemperatur‐Kupplungen schwacher Nukleophile ermöglicht durch [Pd(1‐MeNAP)TFA]2 Präkatalysatoren

Angewandte Chemie, EarlyView.
Bei vielen Pd‐katalysierten Kreuzkupplungen hat sich gezeigt, dass die Katalysatorleistung durch dessen Aktivierung begrenzt wird. Methylnaphthyl (MeNAP)‐Palladiumtrifluoracetat‐Dimere werden als leicht zu lagernde und handhabende Präkatalysatoren vorgestellt, die sich unter Reaktionsbedingungen schnell aktivieren, selbst wenn nur schwach ...
Sourav Manna, Henric F. Janning, Nikolaos V. Tzouras, Jane Anto Simplica Sagayaraj, Fadil Faizal Mannighayil, Angelino Doppiu, Lukas J. Gooßen   +6 more
wiley   +1 more source

Detection of Longer Leukocyte Telomere Length in Patients With Bone Sarcomas. [PDF]

World J Oncol
Chantre-Justino M, Silvestre RT, Delmonico L, Alves G, Ornellas MHF, Rotilho C, Cavalcanti A, Perini JA, Bastos NC, Luz E, Pinheiro R, Delocco BC, Caruso AC, de Sa Lopes AC, Meohas W.   +14 more
europepmc   +1 more source

Ein chirales, sattelförmiges Nanographen mit zwei Heptagon‐integrierten [4]Helicenen

Angewandte Chemie, EarlyView.
Wir präsentieren eine neuartige Synthesestrategie für ein chirales, sattelförmiges Nanographen (cSNG) über eine zweistufige Oxidation eines prochiralen Anthracen‐Vorläufers. Die Scholl‐Oxidation liefert zunächst ein Schlüsselzwischenprodukt mit sp3‐defekten Heptagonen, die anschließende oxidative Dehydrierung ergibt das vollständig konjugierte cSNG ...
Felix Trautner, Boris Borrisov, Philipp Royla, Hongqing Zhao, Hartmut Komber, Li Wan, Evgenia Dmitrieva, Ji Ma, Jan J. Weigand, Qun Yang, Xinliang Feng, Wenhui Niu   +11 more
wiley   +1 more source

Clinical outcomes in older adults with advanced thyroid cancer. [PDF]

Oncologist
Janse van Rensburg HJ, Xiao T, Lajkosz K, Sugumar V, Alibhai SMH, Goldstein D, Mesci A, Barron CC, Ma LX.   +8 more
europepmc   +1 more source

Enantioselective Synthesis of Axially Chiral Diaryl Ethers via Rhodium‐Catalyzed [2 + 2 + 2] Cycloaddition

Angewandte Chemie, EarlyView.
An enantioselective rhodium‐catalyzed [2 + 2 + 2] cycloaddition enables the synthesis of axially chiral diaryl ethers. Carbonyl coordination ensures high reactivity and regioselectivity, affording products bearing up to four stereogenic axes with good enantio‐ and diastereoselectivity.
Yu Sato, Julong Jiang, Kairi Yamashiro, Ken Tanaka   +3 more
wiley   +1 more source

Rapid loss of viability in acute myeloid leukemia cells upon telomerase inactivation. [PDF]

Blood Adv
Aquilanti E, Kageler L, Bozinov V, Meyerson M.   +3 more
europepmc   +1 more source

A Novel Class of “Super‐Strained” Spiro Heterocycles: Gateway to 1‐Azaspiro[3.3]heptane Derivatives, and Biological Validation

Angewandte Chemie, EarlyView.
A new class of “super‐strained” spiro heterocycles—spirocyclic 1‐azabicyclo[1.1.0]butanes—was synthesized via insertion of cyclobutane‐, oxetane‐, and azetidine‐containing sulfonium reagents into substituted azirines. The stability of this new class of compounds was studied.
Philipp Natho, Annarita Vicenti, Marco Colella, Francesco Pasca, Giuseppe Romanazzi, Mauro Niso, Carmen Abate, Ernesto Mesto, Emanuela Schingaro, Renzo Luisi   +9 more
wiley   +1 more source

<i>Lactiplantibacillus plantarum</i> HY7715 Attenuates Oxidative Stress-Induced Neurobiological Aging-Related Changes by Modulating Senescence-Associated Markers and Gut Microbiota. [PDF]

J Microbiol Biotechnol
Lee D, Jeong H, Gwon H, Lee K, Kim JY, Shim JJ, Lee JH.   +6 more
europepmc   +1 more source

Geometric Nonuniformity Localizes Valence Orbitals in Gold Clusters: Case Study on [Au23(SC6H11)16]–

Angewandte Chemie, EarlyView.
The electronic structure of [Au23(SC6H11)16]–, a monolayer‐protected gold cluster with a nonuniform Au13 core, was investigated. Anion photoelectron spectroscopy and density functional theory calculations revealed that the highest occupied molecular orbital (HOMO) and HOMO‐1 are localized on the two triangular Au3 units at the ends of the Au13 core ...
Yosuke Asami, Shun Ito, Kiichirou Koyasu, Tatsuya Tsukuda   +3 more
wiley   +1 more source

Telomere maintenance mechanisms are activated in ganglioneuroblastoma and ganglioneuroma. [PDF]

Oncol Lett
Sugawara M, Haruta M, Ohira M, Akter J, Onuki R, Sugino RP, Ando K, Nakazawa A, Okita H, Takimoto T, Iehara T, Koshinaga T, Uehara S, Kamijo T.   +13 more
europepmc   +1 more source