Results 71 to 80 of about 6,873 (149)

Biocatalytic Synthesis of Polymers of Precisely Defined Structures [PDF]

, 1999
The fabrication of functional nanoscale devices requires the construction of complex architectures at length scales characteristic of atoms and molecules. Currently microlithography and micro-machining of macroscopic objects are the preferred methods for
AB Mauger, AJ Parkhe, AJ Salerno, CJ Noren, CS McDaniel, DC Bassett, DP Dumas, DR Filipula, DT McPherson, DWJ Urry, E Yoshikawa, EK O’Shea, G Zhang, G Zubay, GD Fasman, H Block, H Finkelman, HS Creel, J Cappello, JC Horton, JH aite, JH Miller, JH Waite, JM Gosline, JM Tour, JMJ Fréchet, JO Warwicker, JP O’Brien, KP McGrath, L Albiges-rizo, L owden, LB Sandberg, M Xu, MB inman, ME Saks, MJ Dougherty, MJ Wilson, MM rant, MT Krejchi, P Doty, P Pino, P Schimmel, PY Chou, RB Merrifield, RC Valentine, RDB Fraser, S Kothakota, SV Gangal, T Tuve, TC McMaster, TJ Deming, TS Papas, V Busiello, V usiello, W Dong, WGJ Hoi, Y Go, Y Tsujimoto, YY Tan, Z Indik   +59 more
core   +1 more source

Recent advances in fluorescent materials innovation and film‐based sensing application

Responsive Materials, Volume 4, Issue 1, February 2026.
This review systematically summarizes recent advances in high‐performance film‐based fluorescent sensors (FFSs), specifically covering the innovative strategies for engineering porous sensing films, and the sensitive and rapid detection for diverse target analytes. Current challenges for the further development of the sensors are discussed, guiding the
Xinyu Gou, Junxia Peng, Yu Fang
wiley   +1 more source

4-amino-1,8-naphthalimide azetidine fluorescent indicators and cellular imaging agents

Results in Chemistry
Three 4-amino-1,8-naphthalimides appended with azetidine and substituted at the imide position with methyl 1, dimethylaminoethylene 2 and methyleneferrocene 3 were synthesised.
Alex D. Johnson, Mario Valentino, Gary J. Hunter, David C. Magri   +3 more
doaj   +1 more source

3,3-Dinitroazetidinium 2-hydroxybenzoate

Acta Crystallographica Section E, 2010
In the title gem-dinitroazetidinium 2-hydroxybenzoate salt, C3H6N3O4+·C7H5O3−, the azetidine ring is virtually planar, with a mean deviation from the plane of 0.0242 Å. The dihedral angle between the two nitro groups
Rong Gao, Biao Yan, Tao Mai, Ying Hu, Yu-Lei Guan   +4 more
doaj   +1 more source

Novel achievements with an old metal: Copper-promoted synthesis of four-membered azacycles [PDF]

, 2014
The synthesis of four-membered azacycles is of importance because of the chemical and biological relevance of these compounds. Recent progress in copper-catalyzed reactions has been applicable to a variety of research fields, such as heterocyclic ...
Alcaide, Benito, Almendros, Pedro, Luna, Amparo   +2 more
core   +1 more source

Ring opening of photogenerated azetidinols as a strategy for the synthesis of aminodioxolanes

Beilstein Journal of Organic Chemistry
α-Aminoacetophenones are identified as promising building blocks for the synthesis of highly substituted dioxolanes. The presented strategy is founded on the build and release of molecular strain and achieves a formal transposition of a methyl group ...
Henning Maag, Daniel J. Lemcke, Johannes M. Wahl   +2 more
doaj   +1 more source

Double mimicry evades tRNA synthetase editing by toxic vegetable-sourced non-proteinogenic amino acid

Nature Communications, 2017
Non-proteinogenic (np) amino acids in the food chain present challenges for the human translation machinery. Here the authors show that, while AlaRS and ProRS activate toxic np azetidine-2-carboxylic acid (Aze) present in sugar beets and lilies, only the
Youngzee Song, Huihao Zhou, My-Nuong Vo, Yi Shi, Mir Hussain Nawaz, Oscar Vargas-Rodriguez, Jolene K. Diedrich, John R. Yates, Shuji Kishi, Karin Musier-Forsyth, Paul Schimmel   +10 more
doaj   +1 more source

N-[4-(Azetidin-1-ylsulfonyl)phenyl]-N-(2,4-difluorobenzyl)acetamide

Acta Crystallographica Section E, 2012
In the title molecule, C18H18F2N2O3S, the dihedral angle between the benzene rings is 79.40 (11)°. The 2,4-difluorobenzyl and azetidine fragments adopt a trans arrangement relative to the central benzene ring.
Jian-Mei Lin, Jia-Wen Li, Jing-Song Lv
doaj   +1 more source

N-Benzyl-1,3-dideoxy-1,3-imino-l-xylitol

Acta Crystallographica Section E, 2011
The structure determination confirms the stereochemistry of the title compound, C12H17NO3, which contains a four-membered azetidine ring system. The absolute configuration was determined by the use of d-glucose as the starting material. In the crystal, O&
Sarah F. Jenkinson, Gabriel M. J. Lenagh-Snow, George W. J. Fleet, Amber L. Thompson   +3 more
doaj   +1 more source

Organocatalytic Access to Enantioenriched Spirooxindole-Based 4-Methyleneazetidines

Molecules, 2017
This work describes the synthesis of enantioenriched spiro compounds, incorporating the azetidine and the oxindole motifs. The preparation relies on a formal [2 + 2] annulation reaction of isatin-derived N-tert-butylsulfonyl ketimines with allenoates ...
Giulia Rainoldi, Matteo Faltracco, Claudia Spatti, Alessandra Silvani, Giordano Lesma   +4 more
doaj   +1 more source