Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Bart J. Dahl"'
Publikováno v:
Tetrahedron Letters. 58:4703-4708
Two triply lactone-bridged 1,3,5-triphenylbenzene derivatives with solubilizing moieties have been synthesized in five and six steps from commercially available starting materials. Compounds containing the 1,3,5-triphenylbenzene core with two atom br
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54cc3884b54be9925a11f40b1ebf7fae
https://doi.org/10.1016/j.tetlet.2017.11.010
https://doi.org/10.1016/j.tetlet.2017.11.010
Publikováno v:
Tetrahedron Letters. 61:152429
3,10-Bis(triethylene glycol)benzo[1,2-c:4,5-c']bis[2]benzopyran-5,12-dione has been synthesized as an example of a dilactone-bridged p-terphenyl with a C2h crankshaft architecture that exhibits significant fluorescence. Lactone-bridged rotationally r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86721e11f7336b5ad5273e0c29b4c1f5
https://doi.org/10.1016/j.tetlet.2020.152429
https://doi.org/10.1016/j.tetlet.2020.152429
Autor:
Eva M. Charlesworth-Seiler, Bart J. Dahl, Joel G. Patrow, Deidra L. Gerlach, Eric W. Reinheimer, Jonathan P. Kitzrow, Samantha M. Meyer
Publikováno v:
Tetrahedron. 76:131222
This report describes the synthesis of five new colorful 6-aryldibenzo[b,d]pyrylium cation salts, a largely unexplored structural unit. These rare compounds are benzannulated structural derivatives of the well-known flavylium cations found widespread
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6eaf67500c987045478b52fc2976e23
https://doi.org/10.1016/j.tet.2020.131222
https://doi.org/10.1016/j.tet.2020.131222
Publikováno v:
Tetrahedron. 71:283-292
Three highly fluorescent dilactone bridged terphenyls with crankshaft architectures have been synthesized. This general class of compounds is relatively unexplored. These compounds have been characterized by fluorescence and UV–vis spectroscopy. Fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::956f48823b8ab671b08a46d2ec792de3
https://doi.org/10.1016/j.tet.2014.11.055
https://doi.org/10.1016/j.tet.2014.11.055
Publikováno v:
Tetrahedron Letters. 53:6245-6249
The physical properties of biaryl-containing compounds are known to be highly dependent on molecular geometry. We report the syntheses and fundamental spectroscopic study of two donor–acceptor biaryl lactone (6H-benzo[c]chromen-6-one) pH-driven swi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d27890bee355f0a982f03fc3bc7135ae
https://doi.org/10.1016/j.tetlet.2012.09.016
https://doi.org/10.1016/j.tetlet.2012.09.016
Autor:
Jennifer L. Hartmann, Nancy S. Mills, Francine E. Cheng, Bart J. Dahl, Sean P. McClintock, Kiran C. Patel, Joseph M. Baylan, Cornelia Tirla
Publikováno v:
The Journal of Organic Chemistry. 76:645-653
Dications of 9-(3-phenyl-1H-inden-1-ylidene)-5H-dibenzo[a,d]cycloheptene, 5(2+), were prepared by oxidation with SbF(5) in SO(2)ClF, and their magnetic behavior was compared to dications of 9-(3-phenyl-1H-inden-1-ylidene)-9H-fluorene, 2(2+). The good
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e149ec3b28ca07dba86e97b50fc6d647
https://doi.org/10.1021/jo102220y
https://doi.org/10.1021/jo102220y
Autor:
Bart J. Dahl, Nancy S. Mills
Publikováno v:
Journal of the American Chemical Society. 130:10179-10186
Derivatives of the dication of tetrabenzo[5.5]fulvalene were prepared with phenyl and ethynyl spacers through ionization of the appropriate bis-methylethers. The antiaromaticity shown by the parent dication was demonstrated for these dications with s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4a2443aaede5fa16f937fdafdfff081
https://doi.org/10.1021/ja711501k
https://doi.org/10.1021/ja711501k
Publikováno v:
Tetrahedron Letters. 46:8359-8362
Net directed 180° bond rotation was achieved through diastereoselective ring-opening reactions in an achiral biaryl lactone using a chiral nucleophile followed by re-lactonization. The efficiency of the directed bond rotation has been determined by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aeafbfc5bc3f792be642f280ccf0e006
https://doi.org/10.1016/j.tetlet.2005.09.151
https://doi.org/10.1016/j.tetlet.2005.09.151
Autor:
Bruce P. Branchaud, Bart J. Dahl
Publikováno v:
Tetrahedron Letters. 45:9599-9602
A class of chiral biaryl molecules that have been designed to undergo unidirectional rotation about the aryl–aryl bond may show promise for future application in the area of synthetic molecular motors. These asymmetric molecules should be capable o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5302f6b07ee61a060c29cc2a68bbafac
https://doi.org/10.1016/j.tetlet.2004.10.147
https://doi.org/10.1016/j.tetlet.2004.10.147
Publikováno v:
Tetrahedron Letters. 53:6433-6435
This preliminary report describes the synthesis of three 6-aryldibenzo[b,d]pyrylium salts, a relatively unexplored structural unit. The optical and spectroscopic properties of the 6-aryldibenzo[b,d]pyrylium salts were examined as a function of pH. Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4e8d3d2e6905b647ed82c0f8af070bd
https://doi.org/10.1016/j.tetlet.2012.09.054
https://doi.org/10.1016/j.tetlet.2012.09.054