Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Jim D. Colomvakos"'
Autor:
Janusz Lusztyk, Michael A. McAllister, Thomas T. Tidwell, Kuangsen Sung, Yves Rubin, Xiaokuai Hao, Jim D. Colomvakos, Ronghua Liu, François Diederich, Brian D. Wagner, Ian Egle, Jihai Ma, Annette D. Allen
Publikováno v:
Journal of the American Chemical Society. 119:12125-12130
The interconversion of cyclobutene-1,2-diones (1) and 1,2-bisketenes (RCCO)2 (2) has been surveyed for different combinations of substituents R = H, Me, t-Bu, Ph, Me3Si, CN, Cl, Br, R1O, alkynyl, and PhS. The bisketenes 2 have been generated by flash
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::534f4dd0a66dce9df35f79462db4eb8a
https://doi.org/10.1021/ja9722685
https://doi.org/10.1021/ja9722685
Autor:
Ian Egle, Michael A. McAllister, Ronghua Liu, Jim D. Colomvakos, Romeo M. Marra, Annette D. Allen, Jihai Ma, Thomas T. Tidwell
Publikováno v:
Canadian Journal of Chemistry. 74:457-464
Silyl substituents stabilize ketenes, and permit the preparation of persistent bisketenes, which show characteristic 13C, 17O, and 29Si NMR chemical shifts. The structures and conformations of bisketenes have been examined, as well as their interconv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65aa021d78e62069810ffd6853c38e92
https://doi.org/10.1139/v96-050
https://doi.org/10.1139/v96-050
Autor:
Jim D. Colomvakos, Thomas T. Tidwell,† and, John Warkentin, David L. Pole, Jihai Ma, Ian Egle
Publikováno v:
The Journal of Organic Chemistry. 61:9522-9527
Cycloaddition reactions of the bisketenes OCC(SiMe3)CRCO (15, R = SiMe3; 16, R = Ph) include BF3-catalyzed [2+2] cycloaddition of 15 with CH3CHO to form an isolable β-lactone 18 adduct which undergoes thermal decarboxylation to the vinylketene 19. R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::077f35d0febc2d1243218e8995591579
https://doi.org/10.1021/jo961169r
https://doi.org/10.1021/jo961169r
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e4efebf2c34c12c595d7b4764d4dab6
https://doi.org/10.1002/chin.199719073
https://doi.org/10.1002/chin.199719073
Autor:
Annette D. Allen, T. T. Tidwell, Jihai Ma, Jim D. Colomvakos, Ronghua Liu, Romeo M. Marra, Michael A. McAllister, Ian Egle
Publikováno v:
ChemInform. 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44dd6e5a278485ea1d258cfec38f1b12
https://doi.org/10.1002/chin.199639301
https://doi.org/10.1002/chin.199639301
Autor:
Da-chuan Zhao, P. Renton, Annette D. Allen, Jim D. Colomvakos, T. T. Tidwell, Ronghua Liu, Ian Egle, Michael A. McAllister, Jihai Ma
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e0547629d782907824a36e95966a797
https://doi.org/10.1002/chin.199751296
https://doi.org/10.1002/chin.199751296
Publikováno v:
The Journal of Organic Chemistry. 59:7185-7187
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63730be03ecdf5dd58df212f1ed44207
https://doi.org/10.1021/jo00103a001
https://doi.org/10.1021/jo00103a001
Autor:
Da-chuan Zhao, Michael A. McAllister, Brian D. Wagner, Jim D. Colomvakos, Thomas T. Tidwell, Ian Egle, Janusz Lusztyk, Annette D. Allen
Publikováno v:
Journal of the American Chemical Society. 117:7552-7553
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40a3a312dc607c105c622f7e3376a343
https://doi.org/10.1021/ja00133a032
https://doi.org/10.1021/ja00133a032
Autor:
Jihai Ma, Yves Rubin, X. Hao, Brian D. Wagner, Jim D. Colomvakos, Thomas T. Tidwell, Janusz Lusztyk, François Diederich, Ian Egle, Annette D. Allen, Kuangsen Sung, R. Li, Michael A. McAllister
Publikováno v:
Journal of the American Chemical Society. 120:8901-8901
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5997b56a447d9b32fd69631b421c7356
https://doi.org/10.1021/ja9855141
https://doi.org/10.1021/ja9855141