Tag: M.W=400-450

Sankaran, Balasubramanian published the artcileAbsorption, emission and redox properties of bithienylnaphthalene systems, Related Products of naphthyridine, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (1998), 39(1), 157-158, database is CAplus.

Thienylnaphthalene monomers, 1,5-dimethoxy-2,6-bis(2-thienyl)naphthalene (I), 1,5-dimethoxy-4,8-bis(2-thienyl)-naphthalene (II), and 1,4,5,8-tetramethoxy-2,6-bis(2-thienyl)naphthalene (III) were synthesized by Stille coupling reaction between the resp. dibromides and 2-(tributylstannyl)thiophene. Addnl. thienylnaphthalene monomers 2,6-bis(2-thienyl)-naphthalene (IV) and 1,5-bis(2-thienyl)naphthalene (V) were synthesized by Stille coupling reaction between the corresponding triflates and 2-(tributylstannyl)thiophene. Monomers II and V show only one peak for absorption and emission, while monomers I, III, and IV show more than one peak for absorption and a single doublet for emission. The oxidation potential of the monomers ranges from 0.95 V for monomer V to 0.59 V for monomer III. Polymers synthesized electrochem. from monomers I, II, III and V form good films on ITO coated glass substrate, are greenish in color in the oxidized state, and relatively transmissive and pale yellow in the reduced state.

Polymer Preprints (American Chemical Society, Division of Polymer 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 C12H6F6O6S2, Related Products of naphthyridine.

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

Viglianisi, Caterina published the artcileRegioselective Electrophilic Access to Naphtho[1,2-b:8,7-b’]- and -[1,2-b:5,6-b’]dithiophenes, COA of Formula: C12H6F6O6S2, the publication is Journal of Organic Chemistry (2013), 78(7), 3496-3502, database is CAplus and MEDLINE.

A two-step one purification access to dichloronaphtho[1,2-b:8,7-b’] and [1,2-b:5,6-b’]dithiophenes, e.g. I and II, using bis-alkylnaphthyl alkynes and phthalimidesulfenyl chloride as starting materials has been developed. The functionalization of the carbon-chlorine bonds allowed further modification of NDT core, broadening the potential of the methodol.

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 C8H4ClF3O, COA of Formula: C12H6F6O6S2.

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

Lemasson, Fabien published the artcilePolymer Library Comprising Fluorene and Carbazole Homo- and Copolymers for Selective Single-Walled Carbon Nanotubes Extraction, Application In Synthesis of 152873-79-5, the publication is Macromolecules (Washington, DC, United States) (2012), 45(2), 713-722, database is CAplus.

To date, (n, m) single-walled carbon nanotubes (SWNTs) cannot be selectively synthesized. Therefore, postprocessing of SWNTs including solubilization and sorting is necessary for further applications. Toward this goal, we have synthesized a polymer library consisting of fluorene- and carbazole-based homo- and copolymers. Variations of the connection of these aromatics together with the incorporation of further conjugated monomers give access to a broad diversity of polymers. Their ability to selectively wrap specific (n, m) species is investigated toward HiPco SWNTs raw material which contains more than 40 (n, m) species. Absorption and fluorescence spectroscopies were used to analyze SWNTs/polymer suspensions. These results provide evidence for selective SWNTs/polymer interactions and allow a more detailed assessment of polymer structure-property relationships, thus paving the way toward custom synthesis of polymers for single (n, m) SWNTs extraction

Macromolecules (Washington, DC, United States) 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, Application In Synthesis of 152873-79-5.

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

Sankaran, Balasubramanian published the artcileSynthesis, emission and spectro-electrochemical studies of bithienylnaphthalene systems, Application of 1,5-NAphthalenebis(trifluoromethanesulfonate), the publication is Synthetic Metals (2001), 123(3), 425-433, database is CAplus.

Four bis(2-thienyl)naphthalene monomers were synthesized and their absorption, emission and redox properties were studied. The monomers 1,5-dimethoxy-2,6-bis(2-thienyl)naphthalene (2,6-BTDMN), 1,5-dimethoxy-4,8-bis(2-thienyl)-naphthalene (4,8-BTDMN), and 1,4,5,8-tetramethoxy-2,6-bis(2-thienyl)naphthalene (2,6-BTTMN) were synthesized by Stille coupling reaction between the resp. dibromides and 2-(tributylstannyl)-thiophene. The monomers 2,6-bis(2-thienyl)-naphthalene (2,6-BTN, previously prepared from dibromo precursor) and 1,5-bis(2-thienyl)-naphthalene (1,5-BTN) were prepared similarly between the corresponding di-triflates and 2-(tributylstannyl)thiophene. Monomers 1,5-BTN and 4,8-BTDMN have only one peak in both absorption and emission spectra, while monomers 2,6-BTN, 2,6-BTDMN, and 2,6-BTTMN show multiple bands for absorption and a single doublet for emission. The oxidation potential is 0.95 V for 1,5-BTN and 0.59 V for monomer 2,6-BTTMN. Electrochem. polymerization of the monomers, with the exception of 2,6-BTTMN which was obtained by oxidative polymerization using FeCl₃ as oxidant, produced good polymeric films on ITO coated glass electrodes. The polythiophenes are pale greenish in color in the oxidized state and relatively transparent and pale yellow in the reduced state. Spectro-optoelelectrochem. studies revealed a band gap of 2.4-2.9 eV. Iodine-doped poly(2,6-BTTMN) has a conductivity of 5×10^-2 S/cm.

Synthetic Metals 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, Application of 1,5-NAphthalenebis(trifluoromethanesulfonate).

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