Category: 152873-79-5

Han, Yi published the artcileFormation of Azulene-Embedded Nanographene: Naphthalene to Azulene Rearrangement During the Scholl Reaction, Synthetic Route of 152873-79-5, the publication is Angewandte Chemie, International Edition (2020), 59(23), 9026-9031, database is CAplus and MEDLINE.

Incorporation of a non-hexagonal ring into a nanographene framework can lead to new electronic properties. During the attempted synthesis of naphthalene-bridged double [6]helicene and heptagon-containing nanographene by the Scholl reaction, an unexpected azulene-embedded nanographene and its triflyloxylated product were obtained, as confirmed by X-ray crystallog. anal. and 2D NMR spectroscopy. A 5/7/7/5 ring-fused substructure containing two formal azulene units is formed, but only one of them shows an azulene-like electronic structure. The formation of this unique structure is explained by arenium ion mediated 1,2-Ph migration and a naphthalene to azulene rearrangement reaction according to an in-silico study. This report represents the first exptl. example of the thermodynamically unfavorable naphthalene to azulene rearrangement and may lead to new azulene-based mol. materials.

Angewandte Chemie, International Edition published new progress about 152873-79-5. 152873-79-5 belongs to naphthyridine, auxiliary class Trifluoromethyl,Sulfonate,Benzene, name is 1,5-NAphthalenebis(trifluoromethanesulfonate), and the molecular formula is C12H6F6O6S2, Synthetic Route of 152873-79-5.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Takeuchi, Motoharu published the artcile[2.2]Naphthalenophanes from intermolecular [2 + 2] photocycloadditions of divinylnaphthalenes, Computed Properties of 152873-79-5, the publication is Journal of Organic Chemistry (1993), 58(26), 7388-92, database is CAplus.

Syn-[2.2]naphthalenophanes, e.g., I, were obtained exclusively in reasonable yields from the intermol. [2 + 2] photocycloadditions of divinylnaphthalenes. The position of the vinyl group and the type of vinyl substituent affected the isomer ratio of the products. The structures of naphthalenophanes were elucidated by ¹H-NMR spectroscopy including COSY and NOESY experiments Among the divinylnaphthalenes examined, 1,4-, 1,5-, and 1,6-ones did not give the desired naphthalenophanes. By taking advantage of the effect of the substituents on the photoreaction, the authors could obtain [2.2](1,5)naphthalenophane derivatives from 1,5-bis(β-carboethoxyethenyl)naphthalene and 1,5-bis(β-phenylethenyl)naphthalene, but the authors could not obtain the 1,4-isomers, probably because they are highly strained. Although a mixture of two different divinylnaphthalenes was irradiated, only homoadducts were obtained; no cross adducts were detected.

Journal of Organic Chemistry published new progress about 152873-79-5. 152873-79-5 belongs to naphthyridine, auxiliary class Trifluoromethyl,Sulfonate,Benzene, name is 1,5-NAphthalenebis(trifluoromethanesulfonate), and the molecular formula is C38H74Cl2N2O4, Computed Properties of 152873-79-5.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Barluenga, Jose published the artcileDirect intramolecular arylation of aldehydes promoted by reaction with IPy₂BF₄/HBF₄: synthesis of benzocyclic ketones, Related Products of naphthyridine, the publication is Angewandte Chemie, International Edition (2006), 45(19), 3140-3143, database is CAplus and MEDLINE.

Aldehydes acylated arenes upon treatment at low temperature with IPy₂BF₄ and HBF₄. This reaction was exploited in a novel intramol. approach to the preparation of benzocyclic ketones, e.g., I. A plausible mechanistic rational was also given.

Angewandte Chemie, International Edition published new progress about 152873-79-5. 152873-79-5 belongs to naphthyridine, auxiliary class Trifluoromethyl,Sulfonate,Benzene, name is 1,5-NAphthalenebis(trifluoromethanesulfonate), and the molecular formula is C12H6F6O6S2, Related Products of naphthyridine.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Hindenberg, Philip published the artcileEn Route Towards the Control of Luminescent, Optically-Active 3D Architectures, Name: 1,5-NAphthalenebis(trifluoromethanesulfonate), the publication is Angewandte Chemie, International Edition (2021), 60(2), 766-773, database is CAplus and MEDLINE.

π-Extended systems are key components for the development of future organic electronic technologies. While conceiving mols. with improved properties is fundamental for the evolution of materials science, keeping control over the 3D arrangement of mols. represents an ever-expanding challenge. Herein, a synthetic protocol to replace carbon atoms of π-systems by dissym. phosphorus atoms is reported; in particular, it allowed for conceiving new fused phosphapyrene derivatives with improved properties. The presence of dissym. phosphorus atoms precluded the formation of excimers. X-ray diffraction revealed that, meanwhile, strong intermol. interactions are taking place in the solid state. The phosphapyrenes photoluminesce in the visible region with high quantum yields; importantly, they are CD-active. In addition, the unique non-planar features of phosphorus atoms allowed for the control of the 3D arrangement of mols., rendering lemniscate-like structures. Based on our discoveries, we envisage the possibility to construct higher-order, chiral 3D architectures from larger phosphorus-containing π-systems.

Angewandte Chemie, International Edition published new progress about 152873-79-5. 152873-79-5 belongs to naphthyridine, auxiliary class Trifluoromethyl,Sulfonate,Benzene, name is 1,5-NAphthalenebis(trifluoromethanesulfonate), and the molecular formula is C12H6F6O6S2, Name: 1,5-NAphthalenebis(trifluoromethanesulfonate).

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Berton, Nicolas published the artcileCopolymer-Controlled Diameter-Selective Dispersion of Semiconducting Single-Walled Carbon Nanotubes, Product Details of C12H6F6O6S2, the publication is Chemistry of Materials (2011), 23(8), 2237-2249, database is CAplus.

The ability of a series of strictly alternating copolymers to selectively enwrap single-walled carbon nanotubes (SWNTs) is studied. Seven copolymers comprising either fluorene or carbazole subunits separated by naphthalene, anthracene, and anthraquinone spacers are obtained in good yields via a Suzuki cross-coupling protocol. The 1,5-linked naphthalene, anthracene, and anthraquinone units are introduced to favor a spiral conformation of the polymer backbone to improve its SWNT wrapping features. Particularly high yields of polymers are obtained using the naphthalene-1,5-ditriflate precursor, highlighting the potential of bifunctional aryltriflates as precursors of copolymers. All polymers disperse HiPco SWNTs in toluene. The obtained dispersions are purified by d. gradient centrifugation and their compositions are analyzed by photoluminescence (PL) spectroscopy. In their dispersing ability the polymers display more or less pronounced SWNT diameter selectivity. In particular, poly(9,9-didodecylfluorene-2,7-diyl-alt-anthracene-1,5-diyl) (P2) exhibits a strong selectivity toward SWNTs having a diameter of 鈮?.95 nm, including close-to-zigzag nanotubes. SWNT dispersions of P2 are further analyzed by absorbance and Raman scattering spectroscopy. The diameter selectivity is attributed to the anthracene-1,5-diyl subunit. In order to combine diameter selectivity with the preference for large chiral angles as shown by polyfluorene, the number of fluorene subunits in the polymer backbone is doubled in P7. Indeed, to some extent, the combination of both selectivities is observed in its dispersing behavior.

Chemistry of Materials published new progress about 152873-79-5. 152873-79-5 belongs to naphthyridine, auxiliary class Trifluoromethyl,Sulfonate,Benzene, name is 1,5-NAphthalenebis(trifluoromethanesulfonate), and the molecular formula is C12H6F6O6S2, Product Details of C12H6F6O6S2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem