Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Seung Doo Jeong"'
Publikováno v:
Chem. Commun.. 50:9277-9280
Several regioselectively π-extended, pyrrole fused porphyrinoids have been synthesized by the 1,3-dipolar cycloaddition of meso-alkylidene-(benzi)porphyrins. Pd(II) complexes gave oxidation resistant, bis-pyrrole fused adducts. The repeated 1,3-dipo
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 66:209-212
Pyrrole-based tripodal receptors have been synthesized and characterized. The synthesis utilized an unusual direct nucleophilic substitution of tris-(bromomethyl)-2,4,6-trimethybenzene with pyrrole. The anion binding studies indicate that the acetate
Publikováno v:
Tetrahedron Letters. 49:4138-4141
5-Substituted dipyrromethane analogues ( 8 ), ( 23 ) and ( 25 ) were synthesized by the reaction of 2-vinylpyrroles, 2-vinylthiophene or 2-vinylbenzenes with excess pyrrole in the presence of Lewis acids. Accordingly, tripyrromethane analogues could
Publikováno v:
Bulletin of the Korean Chemical Society. 29:693-696
The design andsynthesis of basic porphyrin building blocks for the con-struction of highly ordered systems often require incorpo-ration of different peripheral substituents. The synthesis ofporphyrins bearing specific patterns of functionality is sti
Autor:
Jongsun Lim, Cho Song Yun, Bo Keun Park, Changjin Lee, Ki-Seok An, Seung-Doo Jeong, Bok Ki Min
Publikováno v:
The Journal of Organic Chemistry. 77:8329-8331
We developed a new synthetic method for bicyclo[2.2.2]octadiene (BCOD)-fused porphyrin (1), a tetrabenzoporphyrin (TBP, 2) precursor that is well-known as a good material for use in organic electronic devices. The newly developed method synthesizes t
Autor:
Agnieszka Nowak-Król, Chang‐Hee Lee, Daniel T. Gryko, Sung Jin Kim, Seung Doo Jeong, Youngmee Kim
Publikováno v:
ChemInform. 42
The title pentaphyrin (IV), synthesized and characterized for the first time, displays concentration-dependent chromogenic responses for fluoride anion in organic solvents.
Publikováno v:
Chemical communications (Cambridge, England). (39)
Meso-alkylidenyl-thia(p-benzi)porphyrin and its ring expanded analog containing exocyclic C-C double bonds at meso-positions, undergo initial protonation at the exocyclic alkylidene alpha-carbon.
Dithiabenzisapphyrin: a core-modified sapphyrin bearing exocyclic double bonds at the meso-positions
Publikováno v:
Journal of the American Chemical Society. 130(2)
A dithia analogue of meso-alkylidenyl sapphyrin, a class of compounds that was hitherto unknown, was prepared via the condensation of a 1,3-phenylenebispyrrole with a bithiophene diol. The resulting system was found to be stable and highly nonplanar.
Publikováno v:
Organic letters. 8(15)
[Structure: see text] Unique core-modified porphyrinoids, such as oxabenziporphyrins, oxapyriporphyrins, and thiapyriporphyrins, bearing exocyclic C-C double bonds at meso-positions, have been synthesized and characterized. The synthesis was accompli
Autor:
Chang‐Hee Lee, Youngmee Kim, Daniel T. Gryko, Seung Doo Jeong, Agnieszka Nowak-Król, Sung Jin Kim
Publikováno v:
Chemical Communications. 46:8737
meso-Alkylidene (m-benzi)pentaphyrin containing exocyclic C=C double bonds at two meso-positions is synthesized and fully characterized for the first time. The single crystal X-ray crystallographic analysis shows a concave conformation with two pyrro