Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Toru Oba"'
Autor:
Yuta Shimada, Hiromu Kawasaki, Kanon Watanabe, Hiroyuki Hara, Kyoya Anraku, Misaki Shoji, Toru Oba, Masaru Matsuda, Weihua Jiang, Atsushi Sunahara, Masaharu Nishikino, Shinichi Namba, Gerry O’Sullivan, Takeshi Higashiguchi
Publikováno v:
AIP Advances, Vol 9, Iss 11, Pp 115315-115315-6 (2019)
The extension of the roadmap of shorter wavelength extreme ultraviolet and soft x-ray sources is a topic of considerable interest. We have studied the optimized emission from high power and/or high brightness sources based on unresolved transition ar
Externí odkaz:
https://doaj.org/article/9df1cff1874842e0a6d99ecace53145d
Autor:
Masaru Furuya, Katsuya Namai, Satoshi Ito, Yuki Kawamata, Makoto Roppongi, Kai Takahashi, Toru Oba, Saori Hashimoto
Publikováno v:
Tetrahedron Letters. 60:707-712
Novel extended BODIPYs fused with bicyclo rings were synthesized from bicyclopyrroles by combining Knoevenagel condensation, Suzuki coupling, and O-chelation. The absorption maxima of the BODIPYs ranged from the visible to near-infrared region and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99c0dd58034ad295e4e11115576aabc8
https://doi.org/10.1016/j.tetlet.2019.01.046
https://doi.org/10.1016/j.tetlet.2019.01.046
Autor:
Sonoko Hashimoto, Kota Miyata, Shiho Numanoi, Takahiro Mitome, Ryo Sakaguchi, Shintaro Anju, Ryo Shinotsuka, Katsunori Kazawa, Rino Iwakami, Makiko Hashimoto, Toru Oba
Publikováno v:
Journal of Chemical Education. 96:503-507
Interdisciplinary outreach activities with easy-to-implement experiments have been developed to enhance high school students’ interest in chemistry and their inquisitive minds with active learning strategies. The synthesis of a model chromophore of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5d739aeb6edb8c2b815c0f27c50fd27
https://doi.org/10.1021/acs.jchemed.8b00443
https://doi.org/10.1021/acs.jchemed.8b00443
Publikováno v:
Tetrahedron Letters. 102:153953
text
学術雑誌論文 / Journal Article
A 1,4,2-diazaborole-type heterocycle was obtained via addition of [(alkylamino)methyl]-trifluoroborate to 2H-azirine-2-carboxylate. The molecular structure of the product was confirmed by X-ray crys
学術雑誌論文 / Journal Article
A 1,4,2-diazaborole-type heterocycle was obtained via addition of [(alkylamino)methyl]-trifluoroborate to 2H-azirine-2-carboxylate. The molecular structure of the product was confirmed by X-ray crys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::527b1edbbdec30a7ad201952284fa605
https://uuair.repo.nii.ac.jp/records/13869
https://uuair.repo.nii.ac.jp/records/13869
Autor:
Satoshi Ito, Kota Miyata, Satoru Yasuda, Yusuke Kinoshita, Takuto Masuya, Toru Oba, Hitoshi Tamiaki
Publikováno v:
Tetrahedron. 74:3707-3711
Iodination of protoporphyrin IX dimethyl ester using phenyliodine bis(trifluoroacetate) (PIFA) and I2 was studied. Iodine added to both the C3- and C8-vinyl groups equally to afford the iodohydrin or iodoether in the presence of water or alcohol, res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a33ab7f6cfd9ffdee01f94b0d90d5f1a
https://doi.org/10.1016/j.tet.2018.05.040
https://doi.org/10.1016/j.tet.2018.05.040
Autor:
Yuuki Iwabe, Yasutaka Shinozaki, Satoshi Ito, Toru Oba, Minenari Asakura, Shun-pei Ito, Lisa Sakamoto, Marina Tobata, Makoto Roppongi
Publikováno v:
Tetrahedron Letters. 58:4141-4144
Bicyclopyrroles are important synthetic equivalents of isoindoles, which are difficult to synthesize. Using bicyclopyrrole as a starting material, functional organic materials such as benzopyrromethene and benzoporphyrin can be synthesized. However,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e7c610b42c2745e6aadeae736d8c94f
https://doi.org/10.1016/j.tetlet.2017.09.056
https://doi.org/10.1016/j.tetlet.2017.09.056
Autor:
Makoto Roppongi, Yuuki Iwabe, Satoshi Ito, Takafumi Sato, Naotsugu Itoh, Masaru Furuya, Toru Oba, Marina Tobata, Yasutaka Shinozaki, Masayuki Akaki
Publikováno v:
Tetrahedron Letters. 58:1338-1342
Bicyclopyrroles were efficiently converted to the corresponding isoindoles by a retro Diels-Alder reaction in supercritical carbon dioxide. By adding ethylene gas as an oxygen scavenger, the isoindole yield was further improved.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d455d85baf6940acc386a168c79f651
https://doi.org/10.1016/j.tetlet.2017.02.055
https://doi.org/10.1016/j.tetlet.2017.02.055
Autor:
Kota Miyata, Toru Oba, Tamesue Shingo, Airi Narita, Ryota Fujisawa, Satoshi Ito, Makoto Roppongi
Publikováno v:
Tetrahedron Letters. 61:152585
Aza-amino acids and an azapeptide with a boron-containing substituent were developed for the first time. We synthesized p-boronophenylalanine (BPA)-like aza-amino acid (aza-BPA) and its analogs in which the α-carbon of the peptide is replaced by nit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d2043c6605a93b5fa9b466bfc919f38
https://doi.org/10.1016/j.tetlet.2020.152585
https://doi.org/10.1016/j.tetlet.2020.152585
Synthesis of meso-substituted tetrabenzoporphyrin via selective meso-bromination of bicycloporphyrin
Autor:
Takuya Komatsu, Toru Oba, Hideyoshi Kimura, Satoshi Ito, Daiki Uno, Yutaro Ishii, Akira Sasaki
Publikováno v:
Tetrahedron Letters. 57:5079-5083
Bicycloporphyrins (CPs) are important compounds as soluble precursors of tetrabenzoporphyrins (BPs). CPs can be converted to the corresponding BPs via selective bromination to meso-position, coupling reaction, and retro Diels–Alder reaction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::418035d01a4c39c27bed5b35205ec6fc
https://doi.org/10.1016/j.tetlet.2016.10.001
https://doi.org/10.1016/j.tetlet.2016.10.001
Autor:
Go, Tsuchiya, Takayuki, Hori, Nobuyuki, Onizawa, Naoyuki, Otani, Sawako, Tanaka-nakadate, Tatou, Iseki, Motoshi, Ouchi, Keitaro, Hayashi, Promsuk, Jutabha, Toru, Oba, Hirotsugu, Fukuda, Naohiko, Anzai
Publikováno v:
Dokkyo journal of medical sciences. 43(1):23-29
Hyperuricemia has recently been recognized as one of the risk factors for cardiovascular diseases. Some calcium channel blockers(CCBs), commonly used in the treatment of hypertension, have been reported to decrease serum urate level. Here, we tried t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::03106e1ca30ec9d3fc4a58f747a9bb5b
http://id.nii.ac.jp/1199/00001282/
http://id.nii.ac.jp/1199/00001282/