Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Tze-Lock Chan"'
Publikováno v:
Polyhedron. 23:1089-1096
Di-protonated 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane tetra-N-oxide takes the RSSR configuration and is stabilized by a pair of charge-assisted intramolecular [O–H⋯O]+ hydrogen bonds; the di-cation induces the formation of lanthani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bb30c22f85ade4193d3a40c992f1e15
https://doi.org/10.1016/j.poly.2004.01.008
https://doi.org/10.1016/j.poly.2004.01.008
Publikováno v:
The Journal of Organic Chemistry. 68:2948-2951
The synthesis of [14][14]metaparacyclophane, the first [m][n]metaparacyclophane ever known, is described. The reaction sequence began with the bis-chloromethylation of [14]paracyclophane in refluxing CS(2), which yielded a nonseparable mixture of 16,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39c282f6b1ba05d01d4a9d1a5891d10d
https://doi.org/10.1021/jo0267044
https://doi.org/10.1021/jo0267044
Publikováno v:
Journal of the Chinese Chemical Society. 44:211-224
The syntheses and the electronic properties of oligo(2,7-biphenylenylene-(E)-vinylene)s are reported. According to our spectral analysis, a limit of 2.5 ev for the peak band-gap of poly(2,7-biphenylenylene-(E)-vinylene)s is estimated. In addition, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49a2eb05510da79f8d170a61d7a64a3e
https://doi.org/10.1002/jccs.199700033
https://doi.org/10.1002/jccs.199700033
Publikováno v:
Tetrahedron Letters. 37:5913-5916
The syntheses, spectral behavior, and electrochemical properties of novel oligo(2,7-biphenylenylene-(E)-vinylene)s (OBPV's) 1 to 3 have been reported. On the basis of the spectral analysis of OBPV's, a band gap of 2.5 ev for poly(2,7-biphenylenylene-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58fddae8c2387d5dca3560adead8c205
https://doi.org/10.1016/0040-4039(96)01275-0
https://doi.org/10.1016/0040-4039(96)01275-0
Publikováno v:
Tetrahedron Letters. 37:2979-2982
Optically active, axially chiral binaphthol-based oligomers 2 to 4 were synthesized via Hay's coupling from the monomer 1 . These oligomers exhibited moderate optical rotation enhancement but the effect quickly reaches a plateau with the tetramer 4 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6736cd81e3bc55736e8e6f9e3cca479d
https://doi.org/10.1016/0040-4039(96)00478-9
https://doi.org/10.1016/0040-4039(96)00478-9
Publikováno v:
Tetrahedron Letters. 37:1049-1052
( E )- and ( Z )-enediynes 7 are readily synthesized in good yields from a one-pot modified Ramberg-Backlund reaction from dipropargylic sulfones 5 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310defd75f1b83604f787ccb4d40d9b3
https://doi.org/10.1016/0040-4039(95)02345-3
https://doi.org/10.1016/0040-4039(95)02345-3
Publikováno v:
ChemInform. 25
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85bb6a103e51953e21806ce98b9cf5ff
https://doi.org/10.1002/chin.199451065
https://doi.org/10.1002/chin.199451065
Publikováno v:
ChemInform. 26
Substituted 1,3,5-hexatrienes 7 can be prepared in excellent yields and with good stereoselectivity from diallylic sulfones 6 employing a modified Ramberg–Backlund reaction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8029757ab130ef01df84018e7e6a622
https://doi.org/10.1002/chin.199543110
https://doi.org/10.1002/chin.199543110
Publikováno v:
ChemInform. 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2aa5d40440dabda8bf757fb9c04afd22
https://doi.org/10.1002/chin.199622102
https://doi.org/10.1002/chin.199622102
Publikováno v:
ChemInform. 27
The syntheses, spectral behavior, and electrochemical properties of novel oligo(2,7-biphenylenylene-(E)-vinylene)s (OBPV's) 1 to 3 have been reported. On the basis of the spectral analysis of OBPV's, a band gap of 2.5 ev for poly(2,7-biphenylenylene-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a45d499b94c78455f33482e924cfd8c
https://doi.org/10.1002/chin.199646108
https://doi.org/10.1002/chin.199646108