Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Anika Kreienbrink"'
1
Accessing the First nido ‐Carborane‐Substituted Diphosphetane: A Ligand and Synthon for nido ‐Carboranylphosphanes
Autor: Pavlo Bielytskyi, Jörg Matysik, Darcy Williamson, Peter Coburger, Peter Lönnecke, Anika Kreienbrink, Evgeny Rys, Evamarie Hey-Hawkins
Publikováno v: Chemistry – A European Journal. 25:11456-11465
Deboronation of a carborane-substituted diphosphetane 2 in toluene yielded the first nido-carboranyldiphosphetane 1. The P-P bond in 1 can be broken via dismutation reactions with diaryl dichalcogenides yielding nido-carboranyl bis-phosphanes that we
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28a2f22c2bdfe426654476f7bc033154
https://doi.org/10.1002/chem.201900989
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2
12-Vertex Zwitterionic Bis-phosphonium-nido-carborates through Ring-Opening Reactions of 1,2-Diphosphetanes
Autor: Peter Lönnecke, Anika Kreienbrink, Benedikt Schwarze, Toni Grell, Evamarie Hey-Hawkins, Jan Schulz, Peter Coburger
Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 24(23)
Carborane-substituted 1,2-diphosphetanes (Ia,b) react with elemental lithium in THF with cleavage of the P-P bond to give a deep red solution from which, in the case of Ia, red crystals of a lithiated intermediate, [{1-Li(THF)PtBu-6-PtBu-4,1,6-closo-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::345f11bfb0c8c6fb528c59c3a9102f9a
https://pubmed.ncbi.nlm.nih.gov/29441623
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5
Carbaborane-based alkynylphosphanes and phospholes
Autor: Menyhárt B. Sárosi, Sascha Ott, Anna I. Arkhypchuk, Peter Wonneberger, Evamarie Hey-Hawkins, Robert Kuhnert, Peter Lönnecke, Anika Kreienbrink
Publikováno v: Chemical communications (Cambridge, England). 51(5)
The reaction of 1,2-bis(N,N-dimethylaminochloro-phosphanyl)-1,2-dicarba-closo-dodecaborane(12) and lithiated phenylacetylene gives a five-membered dihydrophosphole derivative with an exocyclic phosphanyl group. This unexpected reaction opens new poss
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c717dc19d1a8fea44e89db91f21a33e2
https://pubmed.ncbi.nlm.nih.gov/25411728
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6
Carbaborane-substituted 1,2,3-triphospholanes and 1-aza-2,5-diphospholane: new synthetic approaches
Autor: René Frank, Sarah Heinicke, Evamarie Hey-Hawkins, Thi Thuy Duong Pham, Peter Lönnecke, Anika Kreienbrink
Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 20(5)
New phosphorus-containing, five-membered P,P,P and P,N,P heterocycles were synthesized and fully characterized. The P,P,P heterocycles, 1,2,3-triphospholanes, can be synthesized by two different facile pathways, whereas the P,N,P compound, a 1-aza-2,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a910a33a268dfbc2917fe553b225aed7
https://pubmed.ncbi.nlm.nih.gov/24357460
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7
Endocyclic P-P bond cleavage in carbaborane-substituted 1,2-diphosphetane: a new route to secondary phosphinocarbaboranes
Autor: Evamarie Hey-Hawkins, Matthias Findeisen, Peter Lönnecke, Anika Kreienbrink
Publikováno v: Chemical communications (Cambridge, England). 48(75)
Carbaborane-substituted 1,2-diphosphetane reacts with elemental lithium and hydrogen chloride to give exclusively secondary mono- and bis(phosphino)carbaboranes. The latter reacts with two equivalents of formaldehyde and one equivalent of aniline to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb76d43c95a783f0d411e34188fa52e8
https://pubmed.ncbi.nlm.nih.gov/22893102
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