Results 71 to 80 of about 26,541 (195)

Chiroptical Switching by Stereoselective Photochemical Sigmatropic Rearrangements: Experimental Realization of Calderoselectivity

Angewandte Chemie, EarlyView.
Calderoselectivity is established as a stereochemical principle for sigmatropic rearrangements. A homoannulene‐based chiroptical photoswitch undergoes a photochemical [1,11] sigmatropic rearrangement with control of the acyl movement on top of the cyclic π system.
Anne Krenkel, Frederike Beyer, Malte Feßner, Trung Tran Ngoc, Tobias Rüffer, Dominik Hornig, Martin Breugst, Christian Merten, Johannes F. Teichert   +8 more
wiley   +2 more sources

Silver-catalyzed anionic [3 + 2] cycloaddition of benzyl isocyanides with polyfluoroalkylchromones and pyrones: direct synthesis of 2-arylpyrroles. [PDF]

Beilstein J Org Chem
Kochnev IA, Barkov AY.
europepmc   +1 more source

Engineering Rapid Payload Release Rate in 1,6‐Elimination Processes of Self‐Immolative Linkers

Angewandte Chemie, EarlyView.
The payload release rate of self‐immolative linkers was greatly improved through stabilization of an intermediate carbocation, thereby achieving an up to 10 000‐fold improvement in rate constant. Furthermore, lipophilicity was identified as another factor that affects the release rate. This new strategy is applicable to different payloads and different
Albert Marten Schulte, Gülbahar Bozan, Francesca Amoroso, Bart Cornelissen, Wiktor Szymanski   +4 more
wiley   +2 more sources

Syntheses of YCT-529: Net [3 + 2] Cycloaddition and One-Pot Bromination-Suzuki-Miyaura Coupling Strategies. [PDF]

J Org Chem
Dada R, Cheryala N, Georg GI.
europepmc   +1 more source

Highly Enantio- and Diastereoselective Synthesis of Tetrahydrofuran Frameworks via Chiral Lewis Acid-Catalyzed Formal [3+2] Cycloaddition of Allylsilanes. [PDF]

Angew Chem Int Ed Engl
Lee H, Kim DK, Xin P, Lee JW, Seo T, Ryu DH.   +5 more
europepmc   +1 more source

[3+2]-Cycloaddition of Nitrile Imines to Parabanic Acid Derivatives-An Approach to Novel Spiroimidazolidinediones. [PDF]

Int J Mol Sci, 2023
Kuznetsova JV, Tkachenko VT, Petrovskaya LM, Filkina ME, Shybanov DE, Grishin YK, Roznyatovsky VA, Tafeenko VA, Pestretsova AS, Yakovleva VA, Pokrovsky VS, Kukushkin ME, Beloglazkina EK.   +12 more
europepmc   +1 more source

Regioselective [3 + 2] cycloaddition reactions of the phosphorus and arsenic analogues of the thiocyanate anion. [PDF]

Chem Sci
Baltrun M, Hanneberg D, Hett F, Seidl M, Weigend F, Hohloch S.   +5 more
europepmc   +1 more source

A Molecular Electron Density Theory Study of the Domino [4+2]/[3+2] Cycloaddition Leading to a Tricyclic 1,2-Oxazine Nitrones. [PDF]

Molecules
Kącka-Zych A, Domingo LR.
europepmc   +1 more source

Carbene-Ketene Formal [3 + 2] Cycloaddition Enabled by Visible-Light-Induced Dual Photolysis of Diazo Compounds. [PDF]

JACS Au
Fang L, Ren X, Liu T, He F, Zhu J, Cai BG, Lu Y, Xuan J, Wu C.   +8 more
europepmc   +1 more source

Biokatalysatoren für die Geranylierung von Peptiden mit Linearen und Zyklischen Prenylgruppen

Angewandte Chemie, EarlyView.
A combination of genome mining, synthetic biology, and biocatalytic assays revealed enzymes that install linear and cyclized prenyl moieties on ribosomally or chemically synthesized peptides. The promiscuity of both enzymes, while being specific for modification of C‐terminal tryptophans, enables enzymatic access to peptide terpenoid hybrids ...
Sarolt Magyari, Leon F. Schwarz, Luca Schlautmann, Kai Schließmann, Christopher Slotman, Nina von Felten, Claus‐Michael Lehr, Rolf Müller, Alexander F. Kiefer, Jörn Piel, Florian Hubrich   +10 more
wiley   +1 more source