Zobrazeno 1 - 10
of 1 826
pro vyhledávání: '"W Stephan"'
Autor:
Douglas W Stephan
Written for senior undergraduate and graduate students, as well as those chemists unfamiliar with “frustrated Lewis pairs (FLPs)”, this text serves as an introduction to the both the concept and application of FLPs in hydrogenation catalysis. The
Publikováno v:
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits, Vol 5, Iss 1, Pp 25-33 (2019)
We propose a new design for a cellular neural network with spintronic neurons and CMOS-based synapses. Harnessing the magnetoelectric and inverse Rashba-Edelstein effects allows natural emulation of the behavior of an ideal cellular network. This com
Externí odkaz:
https://doaj.org/article/1af35b5fee294e0d909b4719d8ebfebb
Publikováno v:
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits, Vol 5, Iss 2, Pp 67-73 (2019)
A new spintronic nonvolatile memory cell analogous to 1T DRAM with non-destructive READ is proposed. The cells can be used as neural computing units. A dual-circuit neural network architecture is proposed to leverage these devices against the complex
Externí odkaz:
https://doaj.org/article/53fe2bd545dc47a4a4b4f1f79e8764f1
Publikováno v:
Journal of the American Chemical Society. 145:7101-7106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4372f6447349612094ab7d36b3918df0
https://doi.org/10.1021/jacs.3c01887
https://doi.org/10.1021/jacs.3c01887
Publikováno v:
Organic Chemistry Frontiers. 10:1754-1758
B(C6F5)3-catalyzed [2 + 2] cyclizations of α-diazoketones with N-tert-butoxycarbonyl imines affords 20 β-lactams in up to 94% yield, while reactions of α-diazoketones with N-benzoyl imines gave 14 oxazinone derivatives in up to 95% yield.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a5d273a284f8116e7fb4110762ac352
https://doi.org/10.1039/d3qo00054k
https://doi.org/10.1039/d3qo00054k
Autor:
Hyehwang Kim, Douglas W. Stephan
Publikováno v:
Dalton Transactions. 52:5023-5027
Anionic phosphine salts as well as a phosphine donor with both olefin-linked cationic and anionic substituents are derived from FLP–alkyne reactions using a phosphinidene precursor.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c06627d12783b3ebcafb74985a2e9110
https://doi.org/10.1039/d3dt00607g
https://doi.org/10.1039/d3dt00607g
Publikováno v:
Chemical Communications. 59:6191-6194
Reactions of (tBuO2CN)2 with FLPs inducing loss of CH2CMe2; using strong bases [Hbase]2 [((C6F5)3BO2CN)2] are isolated whereas with weaker bases diazene derivatives are obtained.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faa6425b4d5f4184455889c751057fce
https://doi.org/10.1039/d3cc01571h
https://doi.org/10.1039/d3cc01571h
Autor:
Jingjie Tan, Chaopeng Hu, Xin Yang, Shaoying Ju, Levy L. Cao, Yile Wu, Liu Leo Liu, Douglas W. Stephan
Publikováno v:
Chemical Communications. 59:282-285
The aluminum analogue of Piers’ borane, [HAl(C6F5)2]3, is prepared on a gram-scale and shown to be highly acidic, a strong hydride donor, and a catalysts for the hydrosilylation of alkynes and alkenes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c8d8f3a511d68c8556f827b4583464a
https://doi.org/10.1039/d2cc06075b
https://doi.org/10.1039/d2cc06075b
Publikováno v:
Chemical Communications. 59:1833-1836
B(C6F5)3 catalyzed cyclopropanation of 3-alkenyl-oxindoles with diazomethanes to form 25 spirocyclopropane-oxindole derivatives in good to excellent yields (up to 99%) and high diastereoselectivities (up to 20 : 1 d.r.) under mild reaction conditions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8d2e26d3283627f227fac53746864b9
https://doi.org/10.1039/d2cc06744g
https://doi.org/10.1039/d2cc06744g