Results 251 to 260 of about 3,016,957 (322)

Highly Efficient Upconverted Fluorescence from Coulombically Assembled Ion Pair

Advanced Optical Materials, Volume 13, Issue 22, August 5, 2025.
A dicationic Os(II) complex paired with two monoanionic fluorophores is designed to enable highly efficient triplet–triplet annihilation upconversion, achieving a remarkable upconverted fluorescence quantum yield of 13% at 785 nm excitation with a record‐low threshold intensity of 5.9 mW cm⁻2, attributed to diffusion‐free acceleration of energy ...
Ji Hye Baek, Dayoon Song, Gyurim Park, Srinivas Avula, Soojin Park, Kei Ohkubo, Youngmin You   +6 more
wiley   +1 more source

Synthesis of Rhodocorane L Using Gold-Catalyzed Dearomative Spirocyclization. [PDF]

Org Lett
Shimizu EA, Rychnovsky SD.
europepmc   +1 more source

Study of Cytotoxicity of Spiro-Fused [3-Azabicyclo[3.1.0]hexane]oxindoles and Cyclopropa[a]pyrrolizidine-oxindoles Against Tumor Cell Lines. [PDF]

Pharmaceuticals (Basel)
Kornev AA, Shmakov SV, Ponyaev AI, Stepakov AV, Boitsov VM.   +4 more
europepmc   +1 more source

Small molecules and heat treatments reverse vernalization via epigenetic modification in Arabidopsis. [PDF]

Commun Biol
Otsuka N, Yamaguchi R, Sawa H, Kadofusa N, Kato N, Nomura Y, Yamaguchi N, Nagano AJ, Sato A, Shirakawa M, Ito T.   +10 more
europepmc   +1 more source

One-pot three-component synthesis of azaspirononatriene derivatives. [PDF]

Sci Rep
Oudi A, Esmaeili AA, Habibi A.
europepmc   +1 more source

Short Scalable Route to Bis-morpholine Spiroacetals and Oxazepane Analogues: Useful 3D-Scaffolds for Compound Library Assembly. [PDF]

J Org Chem
Kovari D, Male L, Roper KA, Mang CP, Kunz O, Cox LR.   +5 more
europepmc   +1 more source

Novel Benzenesulfonamide Derivatives of 5'-Aminospirotriazolotriazine Exhibit Anti-Inflammatory Activity by Suppressing Pro-Inflammatory Mediators: In Vitro and In Vivo Evaluation Using a Rat Model of Carrageenan-Induced Paw Edema. [PDF]

Biomedicines
Hamed AM, Enaili SS, I Mohammed W, Abouelella AMA, Mohana ZEE, Monir DM, Soliman SS, Hamouda EEM, Elatif HMA, El-Saghier AM.   +9 more
europepmc   +1 more source

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Enantioselective Synthesis of Spiro Heterocyclic Compounds Using a Combination of Organocatalysis and Transition‐Metal Catalysis

The chemical record, 2023
Over the last ten years, the combination of organocatalysis with transition metal (TM) catalysis has become one of the most important toolboxes used for synthesizing optically pure compounds containing chiral quaternary centers, including spiro ...
M. Kamlar, Michal Urban, J. Veselý
semanticscholar   +1 more source