Results 91 to 100 of about 114,350 (293)

Dynamic Self‐Clickable Decellularized Matrix Hydrogels for Regulating Vascularity and Enhancing Muscle Regeneration

Advanced Science, EarlyView.
Dynamic decellularized hydrogels are prepared using bovine decellularized small intestine submucosa (SIS) norbornene (dSIS‐NB). Bovine dSIS contained significant amounts of disulfide‐rich fibrillin‐I, enabling ‘self‐clickable’ thiol‐norbornene gelation and spatiotemporal tuning of hydrogel physicochemical properties.
Van Thuy Duong, Tuba Marjan, Ngoc Ha Luong, Taimoor H. Qazi, Chien‐Chi Lin   +4 more
wiley   +1 more source

Radical‐Based On‐Surface Transformation of Nonplanar Aromatics Into Nonbenzenoid Nanographenes

Angewandte Chemie, EarlyView.
Formation of radicals in nonplanar hydrocarbons through thermally induced dehydrogenation leads to molecular transformation via intramolecular radical‐based cyclization and dimerization, leading to formation of nonbenzenoid nanographenes. ABSTRACT On‐surface synthesis has emerged as a powerful tool for atomically precise C─C bond formation, enabling ...
Daniel Rothhardt, Ming‐Lun Pan, Michael Píro, Stefan Niklaus Heinen, Christian Wäckerlin, Hans Josef Hug, Yao‐Ting Wu, Karl‐Heinz Ernst, Miloš Baljozović   +8 more
wiley   +2 more sources

[2+2]-cycloadditions of alkenes with the triphenylallenyl cation [PDF]

, 1984
The triphenylallenyl cation (8), generated from triphenylpropynol (7) and FSO3H, reacts with alkenes to give the allyl cations 12, which may be deprotonated to yield the methyleneccylobutenes 14.
Deno, Englbert Bäuml, Hammen, Hanack, Herbert Mayr, Marvell, Mayr, Mayr, Mayr, Mayr, Mayr, Mayr, Olah, Pittman   +13 more
core   +1 more source

Computational and Spectral Investigation of 5,12-Dihydro-5,12-ethanonaphthacene-13-carbaldehyde

Molecules, 2011
A conformational search of 5,12-dihydro-5,12-ethanonaphthacene-13-carbaldehyde predicted the presence of twelve conformations. The geometry of the twelve conformations established at the B3LYP/6-31G* level showed only six unique ones.
Abdulrahman I. Almansour, Adel A. El-Azhary, Usama Karama, Mohammed H. Jaafar, Turki M. Al-Turki, Abdulla A. Al-Kahtani   +5 more
doaj   +1 more source

Enantioselective cycloaddition reactions

ChemInform, 1991
Publisher Summary This chapter reviews the cycloadditions reactions because they are popular, widely used, and also constitutes enormous body of chemistry. The chapter focuses on the landmark achievements as well as state-of-the-art examples of relevant chemistry.
openaire   +2 more sources

Surface nano-patterning through styrene adsorption on Si(100)

, 2005
We present an ab initio study of the structural and electronic properties of styrene molecules adsorbed on the dimerized Si(100) surface at different coverages, ranging from the single-molecule to the full monolayer.
A. C. Ferraz, A. Calzolari, A. Ruini, C. B. Duke, E. Molinari, J. P. Perdew, M. J. Caldas   +6 more
core   +1 more source

Regioselective Synthesis of Benzylsilanols from Kobayashi‐Type Reagents via C(sp3)─H Bond Activating 1,4‐Palladium Migration

Angewandte Chemie, EarlyView.
A Pd‐catalyzed regioselective synthesis of benzylsilanols from Kobayashi‐type reagents has been developed through a mechanistically distinct approach involving 1,4‐Pd migration followed by intramolecular transmetalation. The reaction can be combined with various prior transition‐metal‐catalyzed processes and the resulting benzylsilanols have been ...
Ryo Shintani, Keisuke Tachibana
wiley   +2 more sources

Far-infrared vibrational properties of high-pressure-high-temperature C60 polymers and the C60 dimer [PDF]

, 2000
We report high-resolution far-infrared transmission measurements of the 2 + 2 cycloaddition C-60 dimer and two-dimensional rhombohedral and one-dimensional orthorhombic high-pressure high-temperature C60 polymers.
A.M. Rao, A.M. Rao, B. Burger, B. Burger, B. Chase, B. Ma, B. Renker, B. Sundqvist, D. Porezag, G. B. Adams, G. Oszlányi, G. Oszlányi, G.-W. Wang, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.M. Bendele, H. Kuzmany, H.J. Monkhorst, J. B. Page, J. L. Musfeldt, J. Menéndez, J. Menéndez, J. Onoe, J. Winter, J.R. Fox, K. Esfarjani, K. Kamarás, K. Kamarás, K. Kamarás, M. O’Keeffe, M. S. Dresselhaus, M.C. Martin, M.E. Kozlov, M.R. Pederson, O.F. Sankey, P. Launois, P.A. Persson, P.W. Stephens, R. Moret, S. Lebedkin, S. Pekker, T. Pusztai, V. C. Long, V.A. Davydov, V.A. Davydov, V.A. Davydov, V.C. Long, V.D. Blank, W. E. Mayo, W. Krätschmer, W.G. Fateley, Y. Iwasa, Y. Iwasa, Y. Iwasa   +58 more
core   +1 more source

Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides

Angewandte Chemie, EarlyView.
A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu, Jan Niclas Ludwig, Patrick Wolf Antoni, David Tymann, Max Martin Hansmann   +4 more
wiley   +2 more sources

Cycloadditions as a Sweet Route to ‘Double C-Glycosylation’

Biomolecules
Pharmaceuticals, such as the antibiotic erythromycin, and sodium-dependent glucose transporter (SGLT1 & SGTL2) inhibitors such as Bexagliflozin (diabetes) and Sotagliflozin (heart disease), are often sugar-decorated (glycosylated). Glycosylation is a key
Kevin P. P. Mahoney, Rosemary Lynch, Rhea T. Bown, Sunil V. Sharma, Piyasiri Chueakwon, G. Richard Stephenson, David B. Cordes, Alexandra M. Z. Slawin, Rebecca J. M. Goss   +8 more
doaj   +1 more source