Zobrazeno 1 - 10 of 47 pro vyhledávání: '"James E. Galle"'
2
Bora-aromatic systems. 12. Thermal generation and transformation of the borepin ring system: a paradigm of pericyclic processes
Autor: Arnold L. Rheingold, John J. Eisch, James E. Galle, Babak Shafii
Publikováno v: Organometallics. 9:2342-2349
The overall conversion of borole to this isomer of borepin involves a remarkable sequence of pericyclic reactions: a Diels-Alder cycloaddition, 1,3-sigmatropic suprafacial rearrangements of the resulting 7-borabicyclo[2.2.1]heptadiene, a 1,6-disrotat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f87a802ab28503751c1195a922f59fc
https://doi.org/10.1021/om00158a035
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4
Rearrangements of organometallic compounds
Autor: John J. Eisch, James E. Galle
Publikováno v: Journal of Organometallic Chemistry. 160:C8-C12
An efficient, two-step synthesis is presented for preparing γ- and δ-lactones from aldehydes or ketones. (1) the addition of vinyl- or allyl-Grignard reagents to the appropriate carbonyl substrate; and (2) the titanium-catalyzed hydromagnesiation o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41a72d0aef001c18692527543b81450c
https://doi.org/10.1016/s0022-328x(00)89106-8
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5
Degenerate and nondegenerate rearrangements of the 7-borabicyclo[..1]heptadiene system: Twofold [1,3] supra-facial sigmatropic migrations and anionic [1,] carbon-boron shifts
Autor: James E. Galle, John J. Eisch
Publikováno v: Journal of Organometallic Chemistry. 127:C9-C13
Two notable skeletal rearrangements of the 7-borabicyclo[..1]heptadiene system (III) have been uncovered: (1) a facile, degenerate, net twofold [1,] suprafacial sigmatropic migration of the 7-substituted boro group, observable by NMR spectroscopy whe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8ceac130c11b94491ee0b793d993b04
https://doi.org/10.1016/s0022-328x(00)84205-9
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6
Stereospecific preparation of 1,2-epoxyalkyllithium reagents via the generalized lithiation of a-heterosubstituted epoxides1
Autor: James E. Galle, John J. Eisch
Publikováno v: Journal of Organometallic Chemistry. 121:C10-C14
A variety of α-heterosubstituted epoxides bearing triphenylsilyl, trimethylsilyl, diethoxyphosphinyl, phenylsulfonyl, phenyl, ethoxycarbonyl and cyano groups was found to undergo stereospecific α-lithiation by use of such bases as n -butyllithium,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::687940813e5818dbc0fc1f31b4c169b9
https://doi.org/10.1016/s0022-328x(00)85519-9
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8
Organic chemistry of subvalent transition metal complexes
Autor: Allen A. Aradi, James E. Galle, Marek P. Bolesa̵wski, John J. Eisch
Publikováno v: Journal of Organometallic Chemistry. 312:399-416
The formation of 2,3,4,5-tetraphenylnickelole-bis(triphenylphosphine) (IIIa) and 2,3,4,5-tetraphenylnickelole-bis(1,2-diphenylphosphino)ethane (IIIb), either from (E,E)-1,2,3,4-tetraphenyl-1,3-butadien-1,4-ylidenedilithium (I) and the corresponding n
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34586cf559735303333c8c760ec94842
https://doi.org/10.1016/0022-328x(86)80327-8
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9
The role of nickelole intermediates in the oligomerization of alkynes
Autor: James E. Galle, John J. Eisch
Publikováno v: Journal of Organometallic Chemistry. 96:C23-C26
Bis(triphenylphosphine)nickel(II) chloride reacts with E,E, -1,4-dilithio-1,2,3,4-tetraphenylbutadiene to yield a solution of a 2,3,4,5-tetraphenylnickelole complex. This compound reacts promptly with CO to yield tetracyclone, with dimethyl acetylene
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b55d2267298d800c41733ff8a06289a
https://doi.org/10.1016/s0022-328x(00)86437-2
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