Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Hitomi Chiaki"'
Publikováno v:
Molecules, Vol 29, Iss 22, p 5441 (2024)
Gold-catalyzed propargylic substitution of propargylic alcohols 1 with 1,3-dicarbonyl compounds 2 followed by cycloisomerization in ionic liquid enables the environmentally friendly synthesis of polysubstituted furans 3 in good-to-high yields. The re
Externí odkaz:
https://doaj.org/article/27ec75d34add4b0896305d20fe82f719
Autor:
Nobuyoshi Morita, Shingo Uchida, Hitomi Chiaki, Naho Ishii, Kentaro Tanikawa, Kosaku Tanaka, Yoshimitsu Hashimoto, Osamu Tamura
Publikováno v:
Molecules, Vol 29, Iss 2, p 378 (2024)
The treatment of N-tosylpropargyl amines 1 with 1,3-dicarbonyl compounds 2 in the presence of AuBr3 (5 mol%) and AgOTf (15 mol%) afforded poly-substituted furans 3 in good-to-high yields via the gold-catalyzed cleavage of the sp3 carbon–nitrogen bo
Externí odkaz:
https://doaj.org/article/25e4b1153aa64c619540718a7b26aaa1
Autor:
Nobuyoshi Morita, Hitomi Chiaki, Shino Aonuma, Kosaku Tanaka, Yoshimitsu Hashimoto, Osamu Tamura
Publikováno v:
Molbank, Vol 2023, Iss 1, p M1600 (2023)
By strategic use of the valence difference between hard gold(III) and soft gold(I) catalysts, one-pot synthesis of (Z)-5-benzylidene-4-phenyl-2-(p-tolyl)-4,5-dihydrooxazole (15) from propargylic alcohol (9) and p-toluamide (13) was achieved via gold(
Externí odkaz:
https://doaj.org/article/bfdd8388db714fa89e799b4b3a18199d
Autor:
Osamu Tamura, Nobuyoshi Morita, Hitomi Chiaki, Kanae Ikeda, Kosaku Tanaka, Yoshimitsu Hashimoto
Publikováno v:
Synlett. 34:1068-1074
A gold-catalyzed formal (3+2) cycloaddition of benzylic alcohols with 1-phenylpropenes in an ionic liquid permits the environmentally friendly stereoselective synthesis of polysubstituted indanes in good yields and with high selectivity. The gold cat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eea2bd478e8f32b361814b83acd13ce
https://doi.org/10.1055/a-2002-4122
https://doi.org/10.1055/a-2002-4122
Autor:
Norbert Krause, Nobuyoshi Morita, Hitomi Chiaki, Kosaku Tanaka, Yoshimitsu Hashimoto, Osamu Tamura
Publikováno v:
Synlett.
An environmentally friendly stereoselective synthesis of 2,3-dihydrobenzofurans and 1,2,3-trisubstituted indanes in water has been achieved by using a permethylated β-cyclodextrin-tagged N-heterocyclic carbene–gold complex. The gold catalyst can b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a40b6e3f684574ef1c0f5eeed2565b52
https://doi.org/10.1055/a-2016-6577
https://doi.org/10.1055/a-2016-6577
Autor:
Kosaku Tanaka, Osamu Tamura, Hitomi Chiaki, Ryuto Araki, Nobuyoshi Morita, Kanae Ikeda, Yoshimitsu Hashimoto
Publikováno v:
HETEROCYCLES. 103:714
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7cad4f832e92a24e2a2ad72505da8cf
https://doi.org/10.3987/com-20-s(k)71
https://doi.org/10.3987/com-20-s(k)71
Publikováno v:
BioMetals; February 2006, Vol. 19 Issue: 1 p7-12, 6p