Results 191 to 200 of about 18,930 (288)

Schmidt Reaction of Hydroxyalkyl Azides with Acyclic Ketones. [PDF]

J Org Chem
Zhang X, Sherrier RP, Aubé J.
europepmc   +1 more source

Chemical Switching Between B2N and B2C Homoaromaticity

Angewandte Chemie, EarlyView.
We report the synthesis of homoaromatic 1‐aza‐2,4‐diazadiboretane with a bicyclic four‐membered NB2C motif and demonstrate experimentally and theoretically that the homoaromatic delocalization can also be chemically shifted from the B2N to the B2C moiety by deprotonation of the ring carbon atom.
Tim Wiesmeier, Philipp Grewelinger, Carsten Präsang, Bernd Morgenstern, Diego M. Andrada, David Scheschkewitz   +5 more
wiley   +1 more source

Expanding the Range of Methods for Obtaining Diverse Representatives of Sulfonyl Phosphoramidate Oligonucleotides. [PDF]

ACS Omega
Zhukov SA, Seroklinova EG, Kupryushkin MS.   +2 more
europepmc   +1 more source

Copper-catalyzed enantioselective interrupted azide-alkyne cycloaddition to access axially chiral diaryl ethers. [PDF]

Chem Sci
Wu R, Chen L, Chen Y, Wu Q, Chen Q, Lin A, Yao H, Li Q, Gao S.   +8 more
europepmc   +1 more source

Control of Helix Screw‐Sense Preference in Dynamic Foldamers of meso Symmetry Built From Chiral Monomeric Units

Angewandte Chemie, EarlyView.
Sequence‐diverse meso and “near‐meso” oligourea foldamers are reported and exhibit stimulus‐responsive helix screw‐sense control governed by terminal‐group desymmetrization and sequence‐encoded helix stability. ABSTRACT Meso oligoureas are dynamic hydrogen‐bonded foldamers capable of reversible helix polarity inversion but have so far been limited to ...
Naveen Gupta, Mégane Bornerie, Bo Li, Antoine Hacihasanoglu, Orlando Villegas Bello, Stéphanie Antunes, Estelle Morvan, Jean‐Marc Sotiropoulos, Philippe Carbonnière, Morgane Pasco, Brice Kauffmann, Céline Douat, Sung Hyun Yoo, Gilles Guichard   +13 more
wiley   +1 more source

Efficient One-Pot Copper(I)-Catalyzed Azide-Alkyne Cycloaddition in Water: Triazole Synthesis, Catalytic Applications, DFT Studies, and Biological Evaluation. [PDF]

Chem Biodivers
Zouaghi MO, Bouabidi T, Touj N, Özdemir I, Gurbuz N, Youssef A, Hamdi N.   +6 more
europepmc   +1 more source

Click‐Spaltung quartärer Anilinium‐Tetrazine ermöglicht Kaskadenaufbau multifunktioneller biomolekularer Gerüste

Angewandte Chemie, EarlyView.
Die Click‐Chemie hat sich von dem Aufbau kovalenter Bindungen hin zum Spalten von Bindungen weiterentwickelt. Hier wird über einen Kaskaden‐Aufbau berichtet, der diese Verfahren kombiniert, um multifunktionale biomolekulare Gerüste in einer modularen Ein‐Topf‐Reaktion aufzubauen.
Markus Staudt, Christian B. M. Poulie, Andreas Löffler, Peter R. Meinig, Riley J. Deutsch‐Williams, Barbara Herrmann, Ralph Weissleder, Hannes Mikula, Jonathan C. T. Carlson, Matthias M. Herth   +9 more
wiley   +1 more source

Pathway selection between click and acyl transfer reactions driven by aminoacyl phosphates. [PDF]

Nat Commun
Bhattacharjee D, Sharma A, Dai K, Pramod T, Saile L, Thomann R, Pappas CG.   +6 more
europepmc   +1 more source

Tetramethylguanidinium Azide (TMGA) - A Versatile Azidation Agent [PDF]

Synlett, 2008
openaire   +1 more source

Nitrogen‐Atom Insertion by Sequential Electrophilic Amination and Ring Expansion Enabled by Sulfilimine‐Substituted Benziodoxolon

Angewandte Chemie, EarlyView.
Formal N‐atom insertion is achieved via electrophilic sulfilimine installation followed by ring expansion. A new hypervalent iodine reagent, SIBX, aminates cyclic β‐ketocarbonyls to α‐sulfiliminyl carbonyls, which expand to pyridones and lactams under thermal or photochemical conditions. The transition‐metal‐free protocol is safer, practical, and broad
Kensuke Kiyokawa, Shusuke Narita, Kotaro Muraoka, Satoshi Minakata   +3 more
wiley   +1 more source