Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Hideyuki Yoshiyama"'
Autor:
Daisuke Sukeguchi, Surya Prakash Singh, Mamidi Ramesh Reddy, Hideyuki Yoshiyama, Rakesh A. Afre, Yasuhiko Hayashi, Hiroki Inukai, Tetsuo Soga, Shuichi Nakamura, Norio Shibata, Takeshi Toru
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 5, Iss 1, p 7 (2009)
A number of diarylmethanofullerene derivatives were synthesized. The cyclopropane ring of the derivatives has two aryl groups substituted with electron-withdrawing and -donating groups, the latter with long alkyl chains to improve solubility in organ
Externí odkaz:
https://doaj.org/article/3e2199f8a9584b0c87dfa7be7e1648ae
Autor:
Masamichi Hayashi, Etsuko Tokunaga, Motohiro Tanaka, Satoru Mori, Norio Shibata, Norihito Iida, Hideyuki Yoshiyama, Tohru Obata
Publikováno v:
Journal of Fluorine Chemistry. 174:137-141
Photofrin ® is a clinically useful photosensitizer of photodynamic therapy (PDT) used for cancer treatment, but has some disadvantages, including its weak absorbance when excited at 630 nm. Hence, the development of novel photosensitizers with great
Publikováno v:
Organic & biomolecular chemistry. 7(11):2265-2269
We disclose here the synthesis of a novel trifluoroethoxy-coated binuclear Pc 1 which is the first example of a never-closing clamshell Pc.
Autor:
Shuichi Nakamura, Hideyuki Yoshiyama, Daisuke Sukeguchi, Tetsuo Soga, Norio Shibata, Takeshi Toru, Yasuhiko Hayashi
Publikováno v:
Journal of Fluorine Chemistry. 130:361-364
Synthesis and spectroscopic investigation of trifluoroethoxy-coated phthalocyanine–fullerene dyad 2 has been described. While nonfluorinated phthalocyanine–fullerene dyad 1 showed an efficient property of intramolecular photoinduced electron tran
Publikováno v:
Organic & biomolecular chemistry. 6(24):4498-4501
A novel covalently linked binuclear phthalocyanine 1 was synthesized by the “double-click” reaction. The UV-vis and fluorescence spectra and electrochemistry revealed that the geometry of 1 is a closed clamshell conformation in which a strong ele
Publikováno v:
Synlett. 2007:0628-0632
The synthesis of a deoxyribose-phthalocyanine conjugate using a Sonogashira coupling reaction of zinc(II) tetraiodophthalocyaninate with alkynyl-ribose is described. The peripheral deoxyribose substituents improve water solubility as well as the lipo
Publikováno v:
Bulletin of the Chemical Society of Japan. 77:1401-1404
Metal-free phthalocyanines were prepared in good yields by heating phthalonitriles with hexamethyldisilazane, (NH 4 ) 2 SO 4 , and DMF. Good yields of metal-free phthalocyanines involving peripherally substituted phthalocyanines were attained with a
Autor:
Shuichi Nakamura, Paidi Yella Reddy, Hirokazu Tanaka, Takeshi Toru, Hitoshi Uchida, Hideyuki Yoshiyama
Publikováno v:
Synlett. :1649-1652
A convenient preparation of phthalocyanines from phthalonitriles was accomplished by treatment with metal salts and hexamethyldisilazane (HMDS) in DMF at 100 °C. This reaction provides a new preparative method under mild conditions for phthalocyanin
Publikováno v:
Chemical communications : chem comm. 2008(17):1977-1979
A genuine example of non-aggregated highly fluorescent binuclear phthalocyanines is reported; spectroscopic studies and computations revealed that the two halves of trifluoroethoxy-coated binuclear phthalocyanine are rotated in the same directions so
Publikováno v:
Heterocyclic Communications. 15