Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Fumio Miyake"'
Publikováno v:
Tetrahedron. 42:1581-1584
β-Lactone precursors 11 and 12 of pyramidalized alkenes 3,n = 1and 2, have been synthesized by a two-step route involving transannular Paterno-Buchi reaction of methyleneketones 7 and 8, followed by RuO4 oxidation of the resulting oxetanes 9 and 10.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad2b2816cab9c4304fdc3c2b76068952
https://doi.org/10.1016/s0040-4020(01)87574-8
https://doi.org/10.1016/s0040-4020(01)87574-8
Publikováno v:
Tetrahedron Letters. 27:2095-2098
A general synthetic route to trans-alkene isosteres of protected dipeptides is reported. This sequence permits the fullystereocontrolled preparation of these isosteres in optically active form and in quantities sufficient for further biological study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c903a0d14f98d253b4d78f13fdd30177
https://doi.org/10.1016/s0040-4039(00)84457-3
https://doi.org/10.1016/s0040-4039(00)84457-3
Publikováno v:
J. Chem. Soc., Perkin Trans. 2. :1471-1477
When a methylene dichloride solution containing 4,4-diarylphthalazin-1(4H)-one(3) was warmed above –50 °C, nitrogen extrusion occurred to result in the formation of the quinonoid ketene (19). The quinonoid ketene thus generated underwent a facile
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b102742fe6a691a054cb4fc0de3217ce
https://doi.org/10.1039/p29840001471
https://doi.org/10.1039/p29840001471
Publikováno v:
Chemical and Pharmaceutical Bulletin. 28:3561-3569
Heating of crystal violet lactone (CVL) (1a) and its analogs with hydrazine hydrate afforded a single product in each case, to which the 4, 4-diaryl-3, 4-dihydro-1 (2H)-phthalazinone structure (2) was assigned. Kinetic data showed that the introducti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5a4733a5cdb349c4442c72b3273431b
https://doi.org/10.1248/cpb.28.3561
https://doi.org/10.1248/cpb.28.3561
Publikováno v:
Chemical and Pharmaceutical Bulletin. 29:2856-2861
Upon heating of the leuco triarylmethane dyes (2a) and (2b) with excess phosphoryl chloride under reflux, these compounds underwent a normal chlorination followed by a de-anilination process to give (3a) and (3b), respectively. Replacement of the p-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34edc43b83cee4ead35f3358bd49e004
https://doi.org/10.1248/cpb.29.2856
https://doi.org/10.1248/cpb.29.2856
Publikováno v:
Chemical and Pharmaceutical Bulletin. 30:1980-1985
Intramolecular cycloaddition of azaquinonoid-ketene (4) generated from benzotriazinone derivative to N, N-dimethylanilino group afforded "unrearranged" acridone in sharp contrast to a carbon analog series (1). Molecular orbital calculations and confo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98fbefac41a0663462260ccdbcae0470
https://doi.org/10.1248/cpb.30.1980
https://doi.org/10.1248/cpb.30.1980
Publikováno v:
Chemical and Pharmaceutical Bulletin. 30:708-711
A solution of dichloroethane containing crystal violet hydrazide (CVH) underwent a rapid photolytic coloration upon ultraviolet (UV) irradiation. When 5% ethanol-dichloroethane was used as a solvent, the dye formation was more efficient and the 620 n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca2546f5423d2841de4dd71c5b44594c
https://doi.org/10.1248/cpb.30.708
https://doi.org/10.1248/cpb.30.708
Publikováno v:
Chemistry Letters. 10:1593-1596
Evidence for rapid equilibrium between two isomeric 9,9-diaryl quinonoid ketenes via benzocyclobutenone was presented on the basis of the correlation between siteselectivity and HOMO-LUMO energy separation on their intramolecular cycloadditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93baaabd130defcb5406a694c79ea03c
https://doi.org/10.1246/cl.1981.1593
https://doi.org/10.1246/cl.1981.1593
Publikováno v:
Chemical and Pharmaceutical Bulletin. 31:791-797
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc83c05d9bde08d36494a3ad32f0f49b
https://doi.org/10.1248/cpb.31.791
https://doi.org/10.1248/cpb.31.791
Publikováno v:
Tetrahedron Letters. 23:2593-2596
MO quantities by CNDO/2 method on several valence isomeric ketenes and structurally corresponding allene molecules were calculated to evaluate the influence of structural feature on magnitude of back-donation of oxygen n-electrons in ketene, and to r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4842b72993ad955c5f02400ff3bb88e1
https://doi.org/10.1016/s0040-4039(00)87404-3
https://doi.org/10.1016/s0040-4039(00)87404-3