Results 51 to 60 of about 2,936 (205)

Diastereoselective Synthesis of Fulleropyrrolidines from Suitably Functionalized Chiral Cyclobutanes

, 2016
The first diastereoselective synthesis of fulleropyrrolidines endowed with diastereomerically pure functionalized cyclobutanes is reported. The new C60-based cyclobutane derivatives 7a,b and 9 are suitably functionalized for further incorporation into ...
Rosa M. Ortuño (2478697), Beatriz M. Illescas (1994965), Gemma P. Aguado (2673439), Nazario Martín (2421286), Jordi Poater (1637269), Miquel Solà (837576)   +5 more
core   +1 more source

Curing Behavior and Structure Reactivity‐Property Relationships in Epoxidized Linseed Oil Thermosets Crosslinked With Biobased Eutectic Hardeners

Journal of Polymer Science, EarlyView.
The curing of epoxidized linseed oil with citric, tartaric, and malic acid–based eutectic hardeners is compared to reveal how acid functionality, hydroxyl content, and molecular geometry govern activation energy, reaction rates, and network rigidity.
Mona Jamali Moghadam Siahkali, Nathanael Guigo, Luc Vincent, Nicolas Sbirrazzuoli   +3 more
wiley   +1 more source

Formal [4 + 2] Cycloaddition of Donor−Acceptor Cyclobutanes and Aldehydes: Stereoselective Access to Substituted Tetrahydropyrans

, 2016
Formal [4 + 2] Cycloaddition of Donor−Acceptor Cyclobutanes and Aldehydes: Stereoselective Access to Substituted ...
Andrew T. Parsons (2230156), Jeffrey S. Johnson (1312380)   +1 more
core   +1 more source

Therapeutic effect of NEO400, perillyl alcohol conjugated to linoleic acid, in a mouse model of UV‐induced skin damage

Photochemistry and Photobiology, Volume 101, Issue 2, Page 338-349, March/April 2025.
In the present work with mouse models, we demonstrate that a novel compound, NEO400, is able to profoundly protect skin against damage caused by UV radiation (UVR) when it is applied to skin post‐UVR exposure. In comparison, Aloe vera or linoleic acid are unable to achieve a similar level of protection.
Stephen Swenson, Catalina Silva‐Hirschberg, Liliana Freeland, Kristen L. Chen, Nagore I. Marín‐Ramos, Axel H. Schönthal, Thomas C. Chen   +6 more
wiley   +1 more source

Cerium(IV) ammonium nitrate-mediated oxidative rearrangement of cyclobutanes and oxetanes

, 2003
A facile CAN-mediated oxidative rearrangement of alkoxyaryl cyclobutanes and oxetanes is ...
Mohanan, Kishor, Nair, Vijay, Rajan, Roshini, Sheeba, V.   +3 more
core   +1 more source

[2+2]-Photocycloadditions of 2-Acetoxy-1,4-naphthoquinone and Structure Determination of the Main Photoadducts

Photochem
The [2+2]-photocycloaddition of 2-acetoxy-1,4-naphthoquinone with 1,1-diphenylethylene, styrene and cyclopentene was conducted in a conventional batch reactor.
Madyan A. Yaseen, Zhifang Guo, Peter C. Junk, Michael Oelgemöller   +3 more
doaj   +1 more source

Interventional human ocular safety experiments for 222‐nm far‐ultraviolet‐C lamp irradiation

Photochemistry and Photobiology, Volume 101, Issue 2, Page 517-526, March/April 2025.
To directly assess the ocular safety of 222‐nm far‐ultraviolet‐C (UVC) irradiation in humans, five subjects were exposed to 222‐nm UVC at doses of 22, 50, and 75 mJ/cm2. The findings indicate that far‐UVC irradiation does not cause “clinically significant photokeratitis” or long‐term ocular damage, though it may induce temporary discomfort.
Kazunobu Sugihara, Sachiko Kaidzu, Masahiro Sasaki, Masaki Tanito   +3 more
wiley   +1 more source

Ring-Opening Reactions of Donor–Acceptor Cyclobutanes with Electron-Rich Arenes, Thiols, and Selenols

, 2019
Donor–acceptor (D–A) cyclobutanes with two geminal ester groups as acceptors are reacted with electron-rich arenes as nucleophiles to afford ring-opened products. AlCl3 mediates this Friedel–Crafts-type reaction.
Daniel B. Werz (1393828), Stephanie Ehlers (7133876), Peter G. Jones (605999), Alexander Kreft (4356340)   +3 more
core   +1 more source

Spectroscopic analysis of bacterial photoreactivation

Photochemistry and Photobiology, Volume 101, Issue 2, Page 494-504, March/April 2025.
This study investigates the effectiveness of fluorescence and Raman spectroscopy in detecting bacterial photoreactivation. Fluorescence spectroscopy shows limitations, because the intense fluorescence of tryptophan and tyrosine masks fluorescence emitted by thymine molecules.
Keyvan Khosh Abady, Negar Karpourazar, Arjun Krishnamoorthi, Runze Li, Peter M. Rentzepis   +4 more
wiley   +1 more source

Investigation of 222‐nm ultraviolet C irradiation bactericidal effect on the surgical field in a rabbit model

Photochemistry and Photobiology, EarlyView.
In a rabbit surgical field model seeded with polymicrobial flora, a single dose of 222‐nm UV‐C (500 mJ/cm2) markedly reduced bacterial colonies, achieving a bactericidal effect comparable to 254‐nm UV‐C (200 mJ/cm2), while no UV‐C irradiation showed heavy growth. Wound healing did not differ among groups. Microbiota profiling detected SSI‐relevant taxa
Tomoaki Fukui, Yuya Yamamoto, Kyohei Takase, Keisuke Oe, Kenichi Sawauchi, Ryota Nishida, Takahiro Niikura, Rena Kaigome, Masahiro Sasaki, Toru Koi, Hiroyuki Ohashi, Ryosuke Kuroda   +11 more
wiley   +1 more source