Results 181 to 190 of about 66,858 (295)

Heat‐ and Light‐Directed Cycloadditions Enable a Pericyclic Cascade Reaction From a Molecular Precursor

Angewandte Chemie, EarlyView.
A multi‐stimuli‐responsive material is designed that responds to light, heat, and mechanical force through distinct chemical reaction pathways. The pathway is directed by self‐assembly and the applied stimulus. A novel pericyclic reaction cascade is also achieved, and the mechanism is supported through density functional theory calculations.
Liulei Ma, Bella Albano, Gary C. George III, Steven A. Lopez, Kristin M. Hutchins   +4 more
wiley   +1 more source

Alkyne migratory functionalization via C(sp³)-C(sp³) bond transposition. [PDF]

Nat Commun
Tang MQ, Xu HR, Chen XX, Qiao JJ, Ma YM, Wang L, Xue XS, He ZT.   +7 more
europepmc   +1 more source

Remote Desaturation of Unprotected Amines and C─H Amination of Alkanes by Polarity‐Matched N‐Radical Cations

Angewandte Chemie, EarlyView.
Highly electrophilic N‐radical cations enable efficient and selective H‐atom transfer (HAT) of unprotected amines. In this exceedingly practical strategy, simple CuCl catalyzes an interrupted Hofmann–Löffler–Freytag (HLF) reaction to afford δ desaturated amines, aza‐heterocycles, and C─H aminated alkanes without protecting groups.
Pavitra Laohapaisan, Ross M. Dare, Meredith L. Rudich, Jacob J. A. Garwood, Siyuan Gong, R. Thomas Simons, David A. Nagib   +6 more
wiley   +1 more source

Oligonucleotides Post-Synthetic Modifications: An Overview of Clickable Nucleoside Phosphoramidites Suitable for Solid-Phase Synthesis. [PDF]

Chembiochem
Depienne S, Bristiel A, Urban D, Guianvarc'h D.   +3 more
europepmc   +1 more source

Farnesyltransferase Enables Modular Assembly of Dual‐Functional Nanobody Conjugates for in Vivo Imaging of Inflammation

Angewandte Chemie, EarlyView.
A modular farnesyltransferase‐based chemoenzymatic platform enables fast, site‐specific labeling of nanobodies for PET imaging of inflammation. CD11b‐targeted PET agents selectively image myeloid‐driven inflammation, while CD45‐targeted PET agents provide sensitive whole‐body immune mapping.
Sneha Venkatachalapathy, Yoon Ho Lee, Ali Salehi Farid, Heydar Moravej, Sina Djafari Rouhani, Jennifer E. Rowley, Mohammad Rashidian, Mark D. Distefano   +7 more
wiley   +1 more source

Boron trifluoride-mediated domino dehydration/electrophilic cyclization of alkynols: mechanistic insights and origin of stereoselectivity. [PDF]

RSC Adv
Okitsu T, Yoshikawa T, Takayori Y, Hirata S, Shinoki M, Ito M, Sakata K, Hatano M.   +7 more
europepmc   +1 more source

Defined Dinuclear Nickel Sites on Mesoporous Silica Translate Molecular Surface Mimics to Heterogeneous Catalysis

Angewandte Chemie, EarlyView.
The cooperative reactivity characteristic of molecular dinuclear nickel complexes is transferred to mesoporous silica through a systematic immobilization strategy. The resulting material preserves the key features of the bimetallic motif within a robust heterogeneous framework, demonstrating how molecular design principles can be translated into well ...
Jitpisut Poolwong, Adrian Jenner, Eric Juriatti, Mustafa Turan, Manfred Manßen   +4 more
wiley   +1 more source

Forcing the Side-on π-Coordination of a C≡C Triple Bond to Technetium Using the As,CC,As Alkyne Pincer Ligand 1,2-Bis(2-(diisopropylarsaneyl)-4-(trifluoromethyl)phenyl)Ethyne. [PDF]

Angew Chem Int Ed Engl
Roca Jungfer M, Ernst MJ, Eberle L, Kesselring M, Claude G, Ballmann J.   +5 more
europepmc   +1 more source

Acetylene Semi‐Hydrogenation by Photocatalysis

Angewandte Chemie, EarlyView.
Photocatalytic acetylene semi‐hydrogenation is an emerging light‐driven route to polymer‐grade ethylene, offering a mild alternative to energy‐intensive thermocatalysis. By replacing H2 co‐feed with water or other proton sources, these systems can achieve high selectivity under ambient conditions.
Anna Fortunato, Brando Adranno, Sharon Silloni, Marianna Barbieri, Claudia Masia, Francesca Arcudi, Luka Đorđević   +6 more
wiley   +1 more source

Strained alkyne functionalization of carbon dots enables selective photodynamic killing of Gram-positive bacteria.

Nanoscale
Santi CM, Eley A, Takebayashi Y, Haydon CS, Spencer J, Antognozzi M, Galan MC.   +6 more
europepmc   +1 more source