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Correction to Synthesis of Fluorenes via Tandem Copper-Catalyzed [3 + 2] Cycloaddition and Rhodium-Catalyzed Denitrogenative Cyclization in a 5-Exo Mode from 2-Ethynylbiaryls and N-Sulfonyl Azides in One-Pot.

The Journal of organic chemistry

Seo B, Jeon WH, Kim J, Kim S, Lee PH.
PMID: 26360317
J Org Chem. 2015 Oct 02;80(19):9805. doi: 10.1021/acs.joc.5b02070. Epub 2015 Sep 11.

No abstract available.

Corrigendum: Recent Progress towards Transition Metal-Catalyzed Synthesis of Fluorenes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Zhou AH, Pan F, Zhu C, Ye LW.
PMID: 26662218
Chemistry. 2015 Dec 07;21(50):18010. doi: 10.1002/chem.201504348. Epub 2015 Nov 11.

No abstract available.

Halogen-Adjusted Chemoselective Synthesis of Fluorene Derivatives with Position-Controlled Substituents.

Chemistry, an Asian journal

Song J, Sun W, Li Y, Wei F, Liu C, Qian Y, Chen S.
PMID: 26488213
Chem Asian J. 2016 Jan;11(2):211-5. doi: 10.1002/asia.201501135. Epub 2015 Nov 09.

Fluorenes have been synthesized through an efficient novel Pd-catalyzed tandem cross-coupling reaction; these substrates are fascinating building blocks found in organic photoelectric materials. The position of the substituent on fluorenes could be conveniently tuned by changing the halogen in...

Frequency-Selective Photobleaching as a Route to Chromatic Control in Supramolecular OLED Devices.

ACS applied materials & interfaces

Tsai YT, Liu HF, Peng BJ, Tseng KP, Kuo MC, Wong KT, Wantz G, Hirsch L, Raffy G, Del Guerzo A, Bassani DM.
PMID: 28933148
ACS Appl Mater Interfaces. 2017 Oct 18;9(41):36045-36052. doi: 10.1021/acsami.7b06640. Epub 2017 Oct 03.

We report a series of molecules that spontaneously self-organize into small electroluminescent domains of sub-micrometer dimensions when dissolved in tetrahydrofuran. The self-assembled spherical aggregates have an average diameter of 300 nm and exhibit efficient energy transfer from the blue...

Concentration effects on spontaneous and amplified emission in benzo[c]fluorenes.

Physical chemistry chemical physics : PCCP

Kazlauskas K, Kreiza G, Radiunas E, Adomėnas P, Adomėnienė O, Karpavičius K, Bucevičius J, Jankauskas V, Juršėnas S.
PMID: 25912324
Phys Chem Chem Phys. 2015 May 21;17(19):12935-48. doi: 10.1039/c5cp01325a.

Deep-blue-emitting benzo[c]fluorene-cored compounds featuring twisted peripheral moieties for suppressed concentration quenching of emission were synthesized and investigated as potential materials for light amplification. This detailed study of the effect of concentration on the spontaneous and stimulated emission, excited-state lifetime...

Gold(I)-catalyzed cycloisomerizations and alkoxycyclizations of ortho-(alkynyl)styrenes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Sanjuán AM, Rashid MA, García-García P, Martínez-Cuezva A, Fernández-Rodríguez MA, Rodríguez F, Sanz R.
PMID: 25557166
Chemistry. 2015 Feb 09;21(7):3042-52. doi: 10.1002/chem.201405789. Epub 2014 Dec 29.

Indenes and related polycyclic structures have been efficiently synthesized by gold(I)-catalyzed cycloisomerizations of appropriate ortho-(alkynyl)styrenes. Disubstitution at the terminal position of the olefin was demonstrated to be essential to obtain products originating from a formal 5-endo-dig cyclization. Interestingly, a...

Synthesis of 9-alkylidene-9H-fluorenes by a novel palladium-catalyzed rearrangement.

Organic letters

Tian Q, Larock RC.
PMID: 11029202
Org Lett. 2000 Oct 19;2(21):3329-32. doi: 10.1021/ol000220h.

In the presence of a palladium catalyst and NaOAc, aryl iodides react with 1-aryl-1-alkynes to afford 9-alkylidene-9H-fluorenes in good yields. This process appears to involve (1) oxidative addition of the aryl iodide to Pd(0), (2) alkyne insertion, (3) rearrangement...

Spectroscopic signatures of a bandwidth-controlled Mott transition at the surface of 1T-TaSe2.

Physical review letters

Perfetti L, Georges A, Florens S, Biermann S, Mitrovic S, Berger H, Tomm Y, Höchst H, Grioni M.
PMID: 12731984
Phys Rev Lett. 2003 Apr 25;90(16):166401. doi: 10.1103/PhysRevLett.90.166401. Epub 2003 Apr 22.

High-resolution angle-resolved photoemission data show that a metal-insulator Mott transition occurs at the surface of the quasi-two-dimensional compound 1T-TaSe2. The transition is driven by the narrowing of the Ta 5d band induced by a temperature-dependent modulation of the atomic...

Comparative study of the bimolecular electron transfer of fullerenes (C60/C70) and 9,9-disubstituted fluorenes by laser flash photolysis.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology

El-Khouly ME.
PMID: 17487306
Photochem Photobiol Sci. 2007 May;6(5):539-44. doi: 10.1039/b617814f. Epub 2007 Feb 15.

Photoinduced bimolecular electron transfer processes of fullerenes (C60/C70) with fluorene derivatives, namely 9,9-bis(4-amino-3-methylphenyl)fluorene (BAMF), 9,9-bis(4-amino-3-fluorophenyl)fluorene (BAFF) and 9,9-bis(3-amino-4-hydroxyphenyl)fluorene (BAHF) have been comparatively studied in benzonitrile by nanosecond laser photolysis technique in the visible/near-IR regions. By the selective excitation of...

Transformation of Substituted Fluorenes and Fluorene Analogs by Pseudomonas sp. Strain F274.

Applied and environmental microbiology

Grifoll M, Selifonov SA, Chapman PJ.
PMID: 16535132
Appl Environ Microbiol. 1995 Sep;61(9):3490-3. doi: 10.1128/aem.61.9.3490-3493.1995.

Pseudomonas sp. strain F274, previously shown to catabolize fluorene via fluorenone and its angular dioxygenation, 2(prm1),3(prm1)-dihydroxy-2-carboxybiphenyl, phthalate, and protocatechuate, was examined for its ability to transform substituted fluorenes and S- and N-heterocyclic analogs. Halogen- and methyl-substituted fluorenes were metabolized...

Synthesis and functional properties of end-dendronized oligo(9,9-diphenyl)fluorenes.

Organic letters

Li ZH, Wong MS.
PMID: 16562926
Org Lett. 2006 Mar 30;8(7):1499-502. doi: 10.1021/ol0604062.

[structure: see text] A facile approach for the synthesis of a family of dendrimers OFn-EG with hole-transporting ability moieties by copper-catalyzed Buchwald's double-amination as a key reaction has been developed. These novel dendrimers exhibit good energy transfer efficiencies and...

Nanoscale dynamical mean-field theory for molecules and mesoscopic devices in the strong-correlation regime.

Physical review letters

Florens S.
PMID: 17678380
Phys Rev Lett. 2007 Jul 27;99(4):046402. doi: 10.1103/PhysRevLett.99.046402. Epub 2007 Jul 23.

We develop a nanoscale dynamical mean-field theory (nano-DMFT) to deal with strong Coulomb interaction effects in physical systems that are intermediate in size between atoms and bulk materials, taking into account the tunneling into nearby electrodes. Focusing on a...

Showing 1 to 12 of 184 entries