Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Yoji Oderaotoshi"'
Publikováno v:
ARKIVOC, Vol 2006, Iss 7, Pp 370-389 (2006)
Externí odkaz:
https://doaj.org/article/17b04f29876249609f786021ad054611
Publikováno v:
Synthesis. 2007:2481-2484
Three-component coupling reactions of silylene, aldehydes and electron-deficient acetylenes proceed via 1,3-dipolar cycloaddition of silacarbonyl ylides with acetylenic dipolarophiles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f31f581c470966b55df1e8dcaac66ad3
https://doi.org/10.1055/s-2007-983807
https://doi.org/10.1055/s-2007-983807
Publikováno v:
Tetrahedron. 62:12247-12251
A new protocol for the cyclization of N-alkenylamides using chloramine-T and iodine is described. When N-alkenylsulfonamides are treated with chloramine-T and iodine, three- to six-membered N-heterocycles are obtained with complete stereoselectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8668a945db8f91509cd1ad869405aeee
https://doi.org/10.1016/j.tet.2006.10.003
https://doi.org/10.1016/j.tet.2006.10.003
Publikováno v:
ARKIVOC, Vol 2006, Iss 7, Pp 370-389 (2006)
We present herein effective generation and cycloaddition of azomethine ylides and azomethine imines utilizing 1,4-metallatropic strategy in this. Since the metallatropy are based on the strong affinity between silicon/tin and oxygen/sulfur, the metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb4b8f3e33b3e7dfcafbe162a1910098
https://doi.org/10.3998/ark.5550190.0007.727
https://doi.org/10.3998/ark.5550190.0007.727
Autor:
Yoshio Ishino, Takatoshi Ito, Masatoshi Mihara, Mitsuo Komatsu, Satoshi Minakata, Yoji Oderaotoshi
Publikováno v:
Tetrahedron Letters. 46:8105-8108
A novel and efficient synthesis of 3,4,5-triaryltetrahydro-1,4-thiazine derivatives by treatment of β,β′-dichloro sulfides, 2:1 adducts of alkenes and sulfur dichloride, with aromatic amines in the presence of silica gel is described. The silica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99448cd0088a37a96714f7a14b17d1e7
https://doi.org/10.1016/j.tetlet.2005.09.119
https://doi.org/10.1016/j.tetlet.2005.09.119
Publikováno v:
Organic Letters. 7:3509-3512
The ring opening of N-tosylaziridines with trimethylsilylated nucleophiles, catalyzed by N,N,N',N'-tetramethylethylenediamine, led to the production of beta-functionalized sulfonamides in good to excellent yields with high regioselectivity. [reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df4c2366b2454aa995f61c8e76c4a9ef
https://doi.org/10.1021/ol051186f
https://doi.org/10.1021/ol051186f
Publikováno v:
Organic Letters. 6:675-678
1,3-Dipolar cycloadditions of nitrones with alpha-alkyl- and alpha-arylacroleins are catalyzed with the DBFOX/Ph complexes of nickel(II) and magnesium(II) salts to produce the sterically controlled isoxazolidine-5-carbaldehydes, while the reactions w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd4af2e871206a8162ee13fb54b0d6ae
https://doi.org/10.1021/ol0361148
https://doi.org/10.1021/ol0361148
Publikováno v:
Tetrahedron: Asymmetry. 14:635-639
Reactions of malononitrile with 3-(2-alkenoyl)-2-oxazolidinones or 1-(2-alkenoyl)-4-bromo-3,5-dimethylpyrazoles can be doubly activated by the use of catalytic amounts (10 mol% each) of both ( R , R )-DBFOX/Ph·Ni(ClO 4 ) 2 ·3H 2 O and amines, to gi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e6d29b7f30023ac4951f8626f55200b
https://doi.org/10.1016/s0957-4166(03)00084-3
https://doi.org/10.1016/s0957-4166(03)00084-3
Publikováno v:
Tetrahedron. 59:197-205
The solid-phase synthesis of pyrrolidine and pyrrole derivatives using polymer-supported α-silylimines is described. Polymer-supported azomethine ylides were generated from the corresponding α-silylimine by thermal 1,2-silatropy onto the imino nitr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a974a6fe2a0a113ae7dff4197574d6fa
https://doi.org/10.1016/s0040-4020(02)01473-4
https://doi.org/10.1016/s0040-4020(02)01473-4
Publikováno v:
Organic Letters. 4:3505-3508
The 1,3-dipolar cycloaddition of polymer-supported azomethine ylides to dipolarophiles gave pyrrolidine derivatives in good yields. The azomethine ylides were generated from resin-bound alpha-silylimines via a 1,2-silatropic shift. The features of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0ca9c3a8fdf9cdce1f0e92a6f047440
https://doi.org/10.1021/ol026634n
https://doi.org/10.1021/ol026634n