Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Joshua E, Barker"'
Publikováno v:
Journal of the American Chemical Society. 145:2028-2034
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a27625925bd4ea47fa5a2697e08b3c64
https://doi.org/10.1021/jacs.2c11494
https://doi.org/10.1021/jacs.2c11494
Autor:
Abel Cardenas Valdivia, Yasi Dai, Filippo Rambaldi, Joshua E. Barker, Justin J. Dressler, Zheng Zhou, Yikun Zhu, Zheng Wei, Marina A. Petrukhina, Michael M. Haley, Fabrizia Negri, Juan Casado
Publikováno v:
Chemistry – A European Journal. 29
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d4596cbe40a4da1fa914272e350b03
https://doi.org/10.1002/chem.202300388
https://doi.org/10.1002/chem.202300388
Autor:
Lev N. Zakharov, Carlos J. Gómez-García, Joshua E. Barker, Ryohei Kishi, Judy I. Wu, Tavis W. Price, Michael M. Haley, Lucas J. Karas, Samantha N. MacMillan, Masayoshi Nakano
Publikováno v:
Angewandte Chemie. 133:22559-22566
We examine the effects of fusing two benzofurans to s-indacene (indacenodibenzofurans, IDBFs) and dicyclopenta[b,g]naphthalene (indenoindenodibenzofurans, IIDBFs) to control the strong antiaromaticity and diradical character of these core units. Synt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91578031199ab3b69a69e6fd725f1d24
https://doi.org/10.1002/ange.202107855
https://doi.org/10.1002/ange.202107855
Publikováno v:
Organic Letters. 23:5012-5017
Addressing the instability of antiaromatic compounds often involves protection with bulky groups and/or fusion of aromatic rings, thus decreasing paratropicity. We report four naphthothiophene-fused s-indacene isomers, one of which is more antiaromat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4fc8774efc29ea6a982fc8f9fc5e0a1
https://doi.org/10.1021/acs.orglett.1c01514
https://doi.org/10.1021/acs.orglett.1c01514
Autor:
Michael M. Haley, Carlos J. Gómez-García, Abel Cárdenas Valdivia, Ryohei Kishi, Hideki Hayashi, Yosuke Nakamura, Hidenori Miyauchi, Joshua E. Barker, Juan Casado, Shin-ichiro Kato, Samantha N. MacMillan, Masayoshi Nakano
Publikováno v:
Journal of the American Chemical Society. 142:20444-20455
The preparation of a series of dibenzo- and tetrabenzo-fused fluoreno[3,2-b]fluorenes is disclosed, and the diradicaloid properties of these molecules are compared with those of a similar, previously reported series of anthracene-based diradicaloids.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e587359751af38b3586b5b72b63032fa
https://doi.org/10.1021/jacs.0c09588
https://doi.org/10.1021/jacs.0c09588
Autor:
Lucas J. Karas, Masayoshi Nakano, Lev N. Zakharov, Justin J. Dressler, Carlos J. Gómez-García, Hannah E. Hashimoto, Michael M. Haley, Samantha N. MacMillan, Ryohei Kishi, Judy I. Wu, Joshua E. Barker
Publikováno v:
The Journal of Organic Chemistry. 85:10846-10857
The ability to alter optoelectronic and magnetic properties of molecules at a late stage in their preparation is in general a nontrivial feat. Here, we report the late-stage oxidation of benzothiop...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ccda303017bbe1d466f495e90894b76
https://doi.org/10.1021/acs.joc.0c01387
https://doi.org/10.1021/acs.joc.0c01387
Autor:
Eric T. Strand, Samantha N. MacMillan, Masayoshi Nakano, Ryohei Kishi, Justin J. Dressler, Carlos J. Gómez-García, Juan Casado, Abel Cárdenas Valdivia, Michael M. Haley, Joshua E. Barker, Lev N. Zakharov
Publikováno v:
Journal of the American Chemical Society. 142:1548-1555
Inclusion of quinoidal cores in conjugated hydrocarbons is a common strategy to modulate the properties of diradicaloids formed by aromaticity recovery within the quinoidal unit. Here we describe an alternative approach of tuning of diradical propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0401a978696656c1a0f511ff33285222
https://doi.org/10.1021/jacs.9b11898
https://doi.org/10.1021/jacs.9b11898
Autor:
Chun‐Lin Deng, Jeremy P. Bard, Jessica A. Lohrman, Joshua E. Barker, Lev N. Zakharov, Darren W. Johnson, Michael M. Haley
Publikováno v:
Angewandte Chemie International Edition. 58:3934-3938
We describe two novel hybrid receptors combining a phosphorus-/nitrogen-containing (PN) phosphonamidate heterocycle with urea recognition units in an arylethynyl backbone. Structural, spectroscopic and computational studies reveal that the origin of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69e2df03dbc337520a8483054ad9d4cd
https://doi.org/10.1002/anie.201814431
https://doi.org/10.1002/anie.201814431
Autor:
Jérôme Marrot, Tanguy Jousselin-Oba, Michael M. Haley, Lev N. Zakharov, Joshua E. Barker, Conerd K. Frederickson, Michel Frigoli, Takuya Kodama, Min K. Song, Richard P. Johnson
Publikováno v:
ChemPlusChem
ChemPlusChem, Wiley, 2019, Novel Aromatics, 84 (6), pp.665-672. ⟨10.1002/cplu.201800605⟩
ChemPlusChem, Wiley, 2019, Novel Aromatics, 84 (6), pp.665-672. ⟨10.1002/cplu.201800605⟩
International audience; The serendipitous isolation of very small amounts of two naphthocyclobutadiene (NCB) derivatives has led to the computational re-examination of the electrocyclization of Z,Z-3,5-octadiene-1,7-diyne as well as the experimental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e51a2362008a536dacc60a42ebc3384c
https://doi.org/10.1002/cplu.201800605
https://doi.org/10.1002/cplu.201800605
Autor:
Chun-Lin Deng, Lev N. Zakharov, Jeremy P. Bard, Darren W. Johnson, Jacob M. Odulio, Hannah C. Richardson, Michael M. Haley, Paul Ha-Yeon Cheong, Joshua E. Barker
Publikováno v:
Organic Chemistry Frontiers. 6:1257-1265
We have rationally designed and synthesized a library of phosphaquinolinone derivatives containing various electron-donating and -withdrawing groups on two positions of the scaffold. Distinct trends are observed between the substituents on R1 and R2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a2a53920ed8846a4d0054dbfde3cbdc
https://doi.org/10.1039/c9qo00199a
https://doi.org/10.1039/c9qo00199a