Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Yasuo Tohda"'
Publikováno v:
ARKIVOC, Vol 2005, Iss 1, Pp 1-6 (2004)
Externí odkaz:
https://doaj.org/article/b31673b6c1424918bbf7abb97b9f8d00
Publikováno v:
Molecules, Vol 8, Iss 6, Pp 500-504 (2003)
3-Methyl-5-nitropyrimidin-4(3H)-one readily reacts with carbonyl compounds to produce three kinds of ring transformations. The nitropyrimidinone behaves as the synthetic equivalent of activated diformylamine affording 3,5-difunctionalized 4-pyridones
Externí odkaz:
https://doaj.org/article/20c63d3908b443f0a22546adcc8db941
Autor:
Nagatoshi Nishiwaki, Kazuo Matsushima, Mina Tamura, Noriko Asaka, Kazushige Hori, Yasuo Tohda, Masahiro Ariga
Publikováno v:
ARKIVOC, Vol 2002, Iss 10, Pp 34-39 (2002)
Externí odkaz:
https://doaj.org/article/d3b201bb114a49ce8bb40d19ae5f1951
Publikováno v:
ARKIVOC, Vol 2000, Iss 2, Pp 103-111 (2000)
Externí odkaz:
https://doaj.org/article/e7705854d72b47ff85285dbb75b8fffa
Publikováno v:
Bulletin of the Chemical Society of Japan. 89:810-822
The first example of abnormal Michael reaction of an active methylene compound, 2-acylmethyl-4,4-dimethyl-2-oxazoline with acetylenic ketone in acetonitrile is reported. The reaction accompanies 1,3-migration of the acyl group of the substrate to giv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea2f1d9d0397ddf0dbcdb9de9a548ccc
https://doi.org/10.1246/bcsj.20150397
https://doi.org/10.1246/bcsj.20150397
Autor:
Islam S. M. Saiful, Masahide Yamamoto, Yasuo Tohda, Keita Tani, Seigo Yamauchi, P. Heinze, Yasunori Ohba
Publikováno v:
Molecular Physics. 104:1535-1542
The interplanar interactions for fully overlapped (FO) and partially overlapped (PO) carbazole dimers were investigated using zero field splitting (ZFS) parameters D and E in the excited triplet (T1) states. The observed D value decreases from the mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::942a4bc20439d203846e4175cf00c0df
https://doi.org/10.1080/00268970600638606
https://doi.org/10.1080/00268970600638606
Autor:
Yosuke Nakamura, Jun Nishimura, Hiroaki Benten, Hideo Ohkita, Keita Tani, Kazushige Hori, Yasuo Tohda, Shinzaburo Ito, Naoki Sakumoto, Masahide Yamamoto
Publikováno v:
The Journal of Physical Chemistry B. 109:19681-19687
The photophysical properties of a series of triply bridged [3.3.n](3,6,9)carbazolophanes ([3.3.n]Cz, n = 3, 4, 5, 6) were studied as a model compound for a fully overlapped carbazole excimer. In these [3.3.n]Cz molecules, a plane angle of the two car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11e5ec27d40bfe2131d40d1ec505fd3b
https://doi.org/10.1021/jp051539s
https://doi.org/10.1021/jp051539s
Publikováno v:
ARKIVOC, Vol 2005, Iss 1, Pp 1-6 (2004)
Electron-deficient 1-methyl-3,6,8-trinitro-2-quinolone is highly reactive, and readily reacted with two equivalents of primary amines at room temperature to afford ammonium salts of 4- alkylamino-3,4-dihydro-1-methyl-3,6,8-trinitro-2-quinolones. 4-Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a8adf7e743a613eca72f0d29830e2cc
https://doi.org/10.3998/ark.5550190.0006.101
https://doi.org/10.3998/ark.5550190.0006.101
Publikováno v:
The Journal of Physical Chemistry B. 108:16457-16462
The rate of photoinduced intramolecular charge separation (CS) k C S in polymer solids was evaluated by the fluorescence lifetime measurement over a temperature range 100-400 K. Nine kinds of carbazole-spacer-acceptor dyads (Cz-S-A) were embedded in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85b6d17aaa9c9f44416eafbe84f3d3be
https://doi.org/10.1021/jp047354n
https://doi.org/10.1021/jp047354n
Publikováno v:
Polymer. 45:2831-2836
A novel rigid fluorescent probe, carbazole–terephthalate cyclophane (Cz–TP) was applied to evaluate local dielectric constants (e) of various polymer solids in a wide range of temperatures. For poly(vinylidene fluoride), the e increased above the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aadbd988d6de8d86cc3e458c2efd0e47
https://doi.org/10.1016/j.polymer.2004.02.037
https://doi.org/10.1016/j.polymer.2004.02.037