Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Kozumo Saito"'
Autor:
Kenji Azechi, Hiroaki Tokiwa, Yurio Kurita, Akira Takagi, Kozumo Saito, Takashi Ikawa, Yasuyuki Kita, Shuji Akai, Masahiro Egi, Yuji Itoh
Publikováno v:
Tetrahedron. 69:4338-4352
3-Borylbenzynes were generated in situ from 6-boryl-2-iodophenyl trifluoromethanesulfonates using i -PrMgCl·LiCl and applied to Diels–Alder reactions with substituted furans and pyrroles. The reactions allowed good functional group compatibility a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b360d449e4ff7faed7241212dabdf0e9
https://doi.org/10.1016/j.tet.2013.03.016
https://doi.org/10.1016/j.tet.2013.03.016
Publikováno v:
Synlett. 23:2241-2246
Palladium-catalyzed coupling reactions, such as the Suzuki–Miyaura, Sonogashira, Stille, and Buchwald–Hartwig couplings, of phenols using nonafluorobutanesulfonyl fluoride (NfF) are described. These reactions proceeded through the in situ non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::290c3ad0be3732a248d450668b2b3fac
https://doi.org/10.1055/s-0032-1317076
https://doi.org/10.1055/s-0032-1317076
Autor:
Masahiro Egi, Yurio Kurita, Yasuyuki Kita, Kenji Azechi, Akira Takagi, Kozumo Saito, Keisuke Kakiguchi, Takashi Ikawa, Shuji Akai
Publikováno v:
Angewandte Chemie. 122:5695-5698
In situ generated unsymmetrically substituted borylbenzynes undergo the Diels—Alder reaction with furans or pyrroles to give highly functionalized arylboronic acid adducts with high or exclusive regioselectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8638548fa6f294de22f5033baed5d09
https://doi.org/10.1002/ange.201002191
https://doi.org/10.1002/ange.201002191
Publikováno v:
ChemInform. 45
The investigations reveal that the nucleophilic addition to benzynes, generated in situ from triflate (I), exhibits higher ortho-selectivities than those of 3-(trimethylsilyl)benzynes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee72f418fb71aa76cf9d7b1eff9c3dd7
https://doi.org/10.1002/chin.201415074
https://doi.org/10.1002/chin.201415074
Autor:
Takashi Ikawa, Hidemichi Fukawa, Kozumo Saito, Masahiro Egi, Shuji Akai, Kazuyo Hattori, Ryoichi Komaki, Natsuyo Ishikawa
Publikováno v:
Chemicalpharmaceutical bulletin. 61(3)
Both enantiomers of dihydro-β-ionol and β-ionol, contained in the aromatic components of Osmanthus flower and of Hakuto peach, were obtained with high optical purity by lipase-catalyzed kinetic resolution of the racemates. It was found that all the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40a27c9fd5fa9c6d3a1c5f97b2c93889
https://pubmed.ncbi.nlm.nih.gov/23449199
https://pubmed.ncbi.nlm.nih.gov/23449199
Publikováno v:
ChemInform. 43
Palladium-catalyzed coupling reactions, such as the Suzuki–Miyaura, Sonogashira, Stille, and Buchwald–Hartwig couplings, of phenols using nonafluorobutanesulfonyl fluoride (NfF) are described. These reactions proceeded through the in situ non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b04cfd3d574c6ceff75f49f5456a1748
https://doi.org/10.1002/chin.201251088
https://doi.org/10.1002/chin.201251088
Autor:
Kozumo Saito, Yasuyuki Kita, Keisuke Kakiguchi, Shuji Akai, Takashi Ikawa, Yurio Kurita, Masahiro Egi, Akira Takagi, Kenji Azechi
Publikováno v:
ChemInform. 41
In situ generated unsymmetrically substituted borylbenzynes undergo the Diels—Alder reaction with furans or pyrroles to give highly functionalized arylboronic acid adducts with high or exclusive regioselectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f02ef7036fbeffa8f28cb2718f76d5e
https://doi.org/10.1002/chin.201050178
https://doi.org/10.1002/chin.201050178