Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Yasuhiko Kawamura"'
Autor:
Keiji Minagawa, Keita Hoshi, Fumitoshi Yagishita, Shoko Ueta, Yasushi Imada, Yasuhiko Kawamura, Yasushi Yoshida
Publikováno v:
European Journal of Organic Chemistry. 2021:235-238
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1580c11fe073e7f9fc110f923a94038
https://doi.org/10.1002/ejoc.202001200
https://doi.org/10.1002/ejoc.202001200
Autor:
Yasuhiko Kawamura, Masaki Okamoto, Takeshi Yasui, Takeo Minamikawa, Yasushi Imada, Atsushi Tabata, Fumitoshi Yagishita, Hiroki Takanari, Eiji Hase, Hideaki Nagamune, Keiji Minagawa, Keita Hoshi, Yasushi Yoshida
Publikováno v:
Organic & Biomolecular Chemistry. 18:7571-7576
We have synthesized a series of quaternized imidazo[1,2-a]pyridines in three steps from commercially available reagents. These compounds exhibit blue fluorescence emission at around 425 nm with good quantum yields. In addition, one specific compound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f9a2b727a07f69955e33476c0a38548
https://doi.org/10.1039/d0ob01585g
https://doi.org/10.1039/d0ob01585g
Autor:
Keiji Minagawa, Yasuhiko Kawamura, Masashi Yasuda, Shoko Ueta, Yasushi Imada, Takumi Nakamura, Keita Hoshi, Fumitoshi Yagishita, Yasushi Yoshida
Publikováno v:
Organicbiomolecular chemistry. 19(35)
Longer cumulenes have come to draw considerable attention due to their unique properties and reactivities, leading to various hydrocarbons. In this manuscript, we describe the reaction of tetrakis(p-methoxyphenyl)[5]cumulene with iodine to afford pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::425009caa01eb54c7e731f1577f2da58
https://pubmed.ncbi.nlm.nih.gov/34524325
https://pubmed.ncbi.nlm.nih.gov/34524325
Autor:
Yasushi Imada, Yohei Sanagawa, Takeo Minamikawa, Atsushi Tabata, Ryuta Umebayashi, Takeshi Yasui, Hideaki Nagamune, Yasuhiko Kawamura, Keita Hoshi, Fumitoshi Yagishita, Yasushi Yoshida, Keiji Minagawa, Eiji Hase
Publikováno v:
Chemistry Letters. 49:1487-1489
We have synthesized and characterized an acceptor-π-donor-π-acceptor type pyridinium salt. The salt exhibited yellow emission with large Stokes shift in solution and was successfully excited by NIR...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::779481edf882f2cf07848541cf5c0f01
https://doi.org/10.1246/cl.200604
https://doi.org/10.1246/cl.200604
Autor:
Eiji, Hase, Hiroki, Takanari, Keita, Hoshi, Masaki, Okamoto, Atsushi, Tabata, Hideaki, Nagamune, Takeo, Minamikawa, Takeshi, Yasui, Yasushi, Yoshida, Keiji, Minagawa, Yasuhiko, Kawamura, Yasushi, Imada, Fumitoshi, Yagishita
Publikováno v:
Organicbiomolecular chemistry. 18(38)
We have synthesized a series of quaternized imidazo[1,2-a]pyridines in three steps from commercially available reagents. These compounds exhibit blue fluorescence emission at around 425 nm with good quantum yields. In addition, one specific compound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d1808b54dfd317920c9570ae6e1da23a
https://pubmed.ncbi.nlm.nih.gov/32940324
https://pubmed.ncbi.nlm.nih.gov/32940324
Autor:
Naohiro Uemura, Takashi Mino, Fumitoshi Yagishita, Takashi Karatsu, Yoshihiko Tezuka, Yuta Jibu, Keita Hoshi, Yasushi Yoshida, Yasuhiko Kawamura, Takashi Kinouchi, Masami Sakamoto
Publikováno v:
Tetrahedron. 74:3728-3733
Two boron complexes of 1-(o-hydroxyphenyl)imidazo[1,5-a]pyridine, which were named as BOHPIP, have been synthesized. These complexes exhibited blue emission in solution with high quantum yields (ΦFL = up to 0.71). In addition, 1-(o-hydroxyphenyl)imi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::061bd2db983bb019d27a90a92f72622d
https://doi.org/10.1016/j.tet.2018.05.048
https://doi.org/10.1016/j.tet.2018.05.048
Autor:
Yoshihiko Tezuka, Yasuhiko Kawamura, Naohiro Uemura, Fumitoshi Yagishita, Takashi Mino, Masami Sakamoto, Yasushi Yoshida, Hideaki Nagamune, Chiho Nii, Atsushi Tabata
Publikováno v:
Asian Journal of Organic Chemistry. 7:1614-1619
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4f7fe515a875f8516e6a4d630e78d36
https://doi.org/10.1002/ajoc.201800250
https://doi.org/10.1002/ajoc.201800250
Autor:
Yasuhiko Kawamura, Chiho Nii, Fumitoshi Yagishita, Naohiro Uemura, Takashi Mino, Yasushi Yoshida, Yoshihiko Tezuka, Natsumi Kozai, Masami Sakamoto
Publikováno v:
ChemistrySelect. 2:10694-10698
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45bba1b4dcbc99d4303363df2c9b1c7e
https://doi.org/10.1002/slct.201702277
https://doi.org/10.1002/slct.201702277
Autor:
Hiroki Takanari, Yasuhiko Kawamura, Jun-ichi Tanigawa, Chiho Nii, Yasushi Imada, Hideaki Nagamune, Atsushi Tabata, Fumitoshi Yagishita
Publikováno v:
ACS Med Chem Lett
[Image: see text] N,N′-Dimethylated imidazo[1,5-a]pyridinium salt having good water solubility and exhibiting fluorescence emission was found to work as not only a bioimaging agent but also a therapeutic agent under UVA-LED irradiation conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab6a1c1496ce8adb275670c6ee88f39c
https://europepmc.org/articles/PMC6693471/
https://europepmc.org/articles/PMC6693471/
Autor:
Yasuhiko Kawamura, Fumitoshi Yagishita, Chiho Nii, Koh Nomura, Takashi Mino, Masami Sakamoto, Saki Shiono
Publikováno v:
ChemistrySelect. 1:4560-4563
We designed a new class of N-type ligands bearing an imidazo[1,5-a]pyridine moiety and synthesized seven imidazo[1,5-a]pyridine derivatives. The palladium-catalyzed Mizoroki–Heck reaction of aryl bromides and chlorides with alkenes using our imidaz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74bfd6005b04a9954eca0b45dad4106c
https://doi.org/10.1002/slct.201601185
https://doi.org/10.1002/slct.201601185