Dibasic Acids Based on p-Chloromethylbenzoyl Chloride Containing Ether, Thioether or Sulfone Groups

Emerson, William S.; Heimsch, Robert A.

doi:10.1021/ja01147a127

Cited by 4 publications

(2 citation statements)

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“…Bis(4-formylbenzyl) sulfide: A solution of bis(4-methoxycarbonylbenzyl) sulfide [22] (47.0 g, 0.14 mol) in THF (150 mL) was added slowly to a suspension of LiAlH 4 (21.7 g, 0.57 mol) in THF (250 mL) at 0 8C. The mixture was stirred for 3 h under a N 2 atmosphere, and then quenched carefully with water (20 mL).…”

Section: Methodsmentioning

confidence: 99%

Observing Second‐Order Nonlinear Optical Properties by Symmetry Breaking in Centrosymmetric Furan‐Containing Oligoaryl Cyclophandienes

Lin

Hsu

Lee

et al. 2009

Chemistry A European J

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Centrosymmetric furan-containing cyclophandienes 3 and 4, synthesized by our furan annulation protocol, have been shown to exhibit extraordinarily large Stokes shifts and second-order nonlinear optical beta values. The beta values for 3 and 4 measured at 1.32 mum are 208 and 530x10(-30) esu, respectively. The beta values of 3 and 4 are similar to those of respective cyclophenes 1 a and 7 in which strong hyperpoarizable interactions between two twisted pi-systems (oligoaryl and bridging double bond) might take place. Symmetry breaking due to the resonance contribution (cf. 2) and the unique structural features of 3 and 4 has been used to account for this unusual photophysical behavior.

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Section: Methodsmentioning

confidence: 99%

Observing Second‐Order Nonlinear Optical Properties by Symmetry Breaking in Centrosymmetric Furan‐Containing Oligoaryl Cyclophandienes

Lin

Hsu

Lee

et al. 2009

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…Bis(4‐formylbenzyl) sulfide : A solution of bis(4‐methoxycarbonylbenzyl) sulfide22 (47.0 g, 0.14 mol) in THF (150 mL) was added slowly to a suspension of LiAlH 4 (21.7 g, 0.57 mol) in THF (250 mL) at 0 °C. The mixture was stirred for 3 h under a N 2 atmosphere, and then quenched carefully with water (20 mL).…”

Section: Methodsmentioning

confidence: 99%

Thermal behavior of pentachlorophenyl methacrylate–acrylonitrile copolymers

Azab

2003

J of Applied Polymer Sci

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Acrylonitrile was copolymerized with pentachlorophenyl methacrylate (PCPMA)in dimethyl formamide using azobisisobutyronitrile as initiator. The composition of the copolymers was determined by nitrogen analysis and the monomer reactivity ratios (r 1 and r 2 ) were calculated. Both the homopolymer and the copolymers were characterized by a variety of spectral and thermal methods. Thermogravimetry and differential thermal analysis data showed that the comonomer (PCPMA) initiates the nitrile oligomerization reaction in the copolymer upon heating. A mechanism for the initiation of (PCPMA) units in the nitrile copolymers was also proposed.

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Synthesis of New Donor‐Substituted Biphenyls: Pre‐ligands for Highly Luminescent (C^C^D) Gold(III) Pincer Complexes

Feuerstein

Holzer

Gui

et al. 2020

Chemistry A European J

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We herein report on new synthetic strategies for the preparation of pyridine and imidazole substituted 2,2’‐dihalo biphenyls. These structures are pre‐ligands suitable for the preparation of respective stannoles. The latter can successfully be transmetalated to K[AuCl4] forming non‐palindromic [(C^C^D)AuIII] pincer complexes featuring a lateral pyridine (D=N) or N‐heterocyclic carbene (NHC, D=C’) donor. The latter is the first report on a pincer complex with two formally anionic sp2 and one carbenic carbon donor. The [(C^C^D)AuIII] complexes show intense phosphorescence in solution at room temperature. We discuss the developed multistep strategy and touch upon synthetic challenges. The prepared complexes have been fully characterized including X‐ray diffraction analysis. The gold(III) complexes’ photophysical properties have been investigated by absorption and emission spectroscopy as well as quantum chemical calculations on the quasi‐relativistic two‐component TD‐DFT and GW/Bethe–Salpeter level including spin–orbit coupling. Thus, we shed light on the electronic influence of the non‐palindromic pincer ligand and reveal non‐radiative relaxation pathways of the different ligands employed.

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Dibasic Acids Based on p-Chloromethylbenzoyl Chloride Containing Ether, Thioether or Sulfone Groups

Cited by 4 publications

References 0 publications

Observing Second‐Order Nonlinear Optical Properties by Symmetry Breaking in Centrosymmetric Furan‐Containing Oligoaryl Cyclophandienes

Observing Second‐Order Nonlinear Optical Properties by Symmetry Breaking in Centrosymmetric Furan‐Containing Oligoaryl Cyclophandienes

Thermal behavior of pentachlorophenyl methacrylate–acrylonitrile copolymers

Synthesis of New Donor‐Substituted Biphenyls: Pre‐ligands for Highly Luminescent (C^C^D) Gold(III) Pincer Complexes

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