Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Youngmee Jeong"'
Publikováno v:
Tetrahedron Letters. 43:181-184
A new total synthesis of the novel lactone natural product octalactin A is described. The key step involves the facile construction of the eight-membered lactone core via ring-closing metathesis (RCM). This oxocene was elaborated to give the powerful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2ed3fe64e9376e413d07616ede5c187
https://doi.org/10.1016/s0040-4039(01)02078-0
https://doi.org/10.1016/s0040-4039(01)02078-0
Autor:
Pedro L. Muino, Nagaaki Sato, Peter C. Still, Indranath Ghosh, Youngmee Jeong, Keith R. Buszek
Publikováno v:
Synthetic Communications. 31:1781-1791
The synthesis of functionalized saturated eight-membered ring lactones from their corresponding seco acids is a very facile process using conventional macrolactonization protocols. This heretofore unrecognized and overlooked strategy is illustrated f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7ecdab8b2dc606609b782e26800dc71
https://doi.org/10.1081/scc-100104408
https://doi.org/10.1081/scc-100104408
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :1066-1071
Both syn- and anti-[2+2] heterodimers (1 and 2) of methyl phenanthrene-9-carboxylate (9-MP) and benzene were synthesized from 9-MP and cyclohexa-1,4-diene. Upon irradiation of 9-MP and excess methyl orthoformate of cis-cyclohexa-3,5-diene-1,2-diol fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85810c3a954d18da40428c5b35195457
https://doi.org/10.1039/b009846i
https://doi.org/10.1039/b009846i
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1299-1304
In contrast to the previous report, the irradiation of 9-cyanophenanthrene (9-CP) and furan through a uranium filter yielded an anti-[2+2] adduct (1) as well as the syn-[2+2] cyclodimer (2) of 9-CP. A mechanistic study indicated that the photocycload
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c3ccd2d2831737df9a28ecdd8aea690
https://doi.org/10.1039/a902714i
https://doi.org/10.1039/a902714i
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :2501-2504
An unprecedented photodimerization of 1-substituted naphthalenes is reported. Upon irradiation of naphthalene-1-carbonitrile or methyl 1-naphthoate through a Pyrex filter at –78 °C, the corresponding syn-[2+2] cyclodimer was isolated as a single p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fcb20a5f85630fa7d5d273887a5ff61
https://doi.org/10.1039/a804032j
https://doi.org/10.1039/a804032j
Autor:
Keith R. Buszek, Youngmee Jeong
Publikováno v:
Synthetic Communications. 24:2461-2472
The first synthesis of a nine-membered ring by means of an intramolecular Ni(II)/Cr(II)-mediated coupling reaction between an iodoacetylene and an aldehyde is reported. The yield of the reaction is strongly dependent on the substrate concentration, b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e311a0ad1ca8856c314b0d15b7fc8d59
https://doi.org/10.1080/00397919408010554
https://doi.org/10.1080/00397919408010554
Autor:
Youngmee Jeong, Keith R. Buszek
Publikováno v:
ChemInform. 26
The first synthesis of a nine-membered ring by means of an intramolecular Ni(II)/Cr(II)-mediated coupling reaction between an iodoacetylene and an aldehyde is reported. The yield of the reaction is strongly dependent on the substrate concentration, b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c37e6703a9fc66c463a1b75401b4e7a
https://doi.org/10.1002/chin.199506092
https://doi.org/10.1002/chin.199506092
Publikováno v:
ChemInform. 25
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::123fa3ab52334c44c6e9c81bfef2abbc
https://doi.org/10.1002/chin.199444230
https://doi.org/10.1002/chin.199444230
Autor:
Youngmee Jeong, Keith R. Buszek
Publikováno v:
ChemInform. 26
Pd(0)Cu(I) catalyzed reactions with certain terminal tertiary propargylic alcohols lead to new arylated products. This abnormal cross-coupling pathway represents another example of aryl migration in transition metal catalyzed reactions. The proces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bafb7aae97cbacb2fadf2ddd1f090e18
https://doi.org/10.1002/chin.199547085
https://doi.org/10.1002/chin.199547085
Autor:
Keith R. Buszek, Youngmee Jeong
Publikováno v:
ChemInform. 27
A new and efficient synthesis of the key C.1–C.9 intermediate 5 of the octalactins has been achieved starting from L-ascorbic acid.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::004288d6f3f79e11dd0573b1f467f9f6
https://doi.org/10.1002/chin.199603274
https://doi.org/10.1002/chin.199603274