Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Akiyoshi Horibata"'
Autor:
Masao Tokuda, Mamoru Miyazawa, Takeshi Ohkuma, Hisanori Senboku, Kazuhiko Orito, Yu Onozaki, Takatoshi Nakamura, Akiyoshi Horibata, Nobuhito Kurono, Takashi Tokuhashi
Publikováno v:
Journal of Heterocyclic Chemistry. 50:E48-E54
A variety of alkoxy-substituted benzolactams with a berbine or yohimbane skeleton were prepared from 1-benzyl-1,2,3,4-tetrahydroisoquinolines or 1-benzyl-1,2,3,4-tetrahydro-β-carbolines by a phosphine-free Pd(II)-catalyzed direct aromatic carbonylat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66621aeed1527db4607ff1f8073d4c7d
https://doi.org/10.1002/jhet.1044
https://doi.org/10.1002/jhet.1044
Autor:
Kazuhiko Orito, Akiyoshi Horibata, Takashi Tokuhashi, Nobuhito Kurono, Takashi Ohkuma, Eri Kumazawa, Masao Tokuda, Hisanori Senboku
Publikováno v:
European Journal of Organic Chemistry. 2012:4622-4633
The Pd(OAc)2-induced carbonylation of alkoxy-substituted 1-amino-2-phenyltetralins and 1-amino-2-phenylnaphthalenes was examined to provide the benzo[c]phenanthridine ring system. The carbonylation of substrates containing methylenedioxy groups gave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf3d5e09035d2251661764cc51d68f29
https://doi.org/10.1002/ejoc.201200262
https://doi.org/10.1002/ejoc.201200262
Autor:
Takatoshi Nakamura, Hideo Nagasaki, Mamoru Miyazawa, Masao Tokuda, Motoki Yuguchi, Tetsuro Yamazaki, Kazuhiko Orito, Satoshi Yamashita, Akiyoshi Horibata, Harumi Ushito
Publikováno v:
The Journal of Organic Chemistry. 71:5951-5958
A phosphine-free catalytic system [Pd(OAc)2-Cu(OAc)2-air] induced a substrate-specific carbonylation of amines in boiling toluene under CO gas (1 atm). Symmetrical N,N'-dialkylureas were obtained by the carbonylation of primary amines. N,N,N'-Trialky
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0545dd92d9fd152dd297c031efcf6184
https://doi.org/10.1021/jo060612n
https://doi.org/10.1021/jo060612n
Autor:
Hisanori Senboku, Takashi Tokuhashi, Takashi Ohkuma, Eri Kumazawa, Nobuhito Kurono, Kazuhiko Orito, Akiyoshi Horibata, Masao Tokuda
Publikováno v:
ChemInform. 44
Benzo[c]phenanthridine alkaloids like oxysanguinarine (IV) and O-methyloxyfagaronine (Vb) are synthesized by a Pd(OAc)2-induced direct aromatic carbonylation reaction and subsequent dehydrogenation with DDQ.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c05603bf3271290eb99f86eb0e4e34a
https://doi.org/10.1002/chin.201308174
https://doi.org/10.1002/chin.201308174
Autor:
Kazuhiko Orito, Satoshi Yamashita, Akiyoshi Horibata, Motoki Yuguchi, Hideo Nagasaki, Harumi Ushito, Takatoshi Nakamura, Masao Tokuda
Publikováno v:
Journal of the American Chemical Society. 126(44)
We developed a new method for Pd(II)-catalyzed direct aromatic carbonylation in a phosphine-free catalytic system using Pd(OAc)2 and Cu(OAc)2 in an atmosphere of CO gas containing air. The carbonylation proceeded with ortho-palladation, inducing a re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d1bb88e4522a2b32291976b995f57b2
https://pubmed.ncbi.nlm.nih.gov/15521739
https://pubmed.ncbi.nlm.nih.gov/15521739
Autor:
Masao Tokuda, Akiyoshi Horibata, Rika Harada, Motoki Yuguchi, Takatoshi Nakamura, Kazuhiko Orito, Harumi Ushito, Hideo Nagasaki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39ba7f5faa78791a0777ce5dee4464f2
https://doi.org/10.1016/b978-0-08-044304-1.50264-1
https://doi.org/10.1016/b978-0-08-044304-1.50264-1
