NDLI: Remarkable coordination behavior of alkyl isocyanides toward unsaturated vicinal frustrated P/B Lewis pairs

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Chemical Science Vol - 4 Issue - 5

Chemical Science Vol - 4 Issue - 4

Chemical Science Vol - 4 Issue - 3

Chemical Science Vol - 4 Issue - 2

Chemical Science Vol -3

Chemical Science Vol -2

Chemical Science Vol -1

Remarkable coordination behavior of alkyl isocyanides toward unsaturated vicinal frustrated P/B Lewis pairs

Content Provider	Royal Society of Chemistry (RSC)
Author	Fröhlich, Roland Kehr, Gerald Daniliuc, Constantin G. Petersen, Jeffrey L. Erker, Gerhard Schirmer, Birgitta Grimme, Stefan Miera, Greco González Eckert, Hellmut Ekkert, Olga Wiegand, Thomas
Copyright Year	2013
Abstract	The conjugated frustrated phosphane/borane Lewis pairs formed by 1,1-carboboration of a substituted diphenylphosphino acetylene, undergo a synergistic 1,1-addition reaction to n-butyl isocyanide with formation of new B–C and P–C bonds to the former isonitrile carbon atom. Using tert-butyl isocyanide dynamic behaviour between the isocyanide–[B] adduct and the 1,1-addition product formation was observed in solution. The different modes of isocyanide binding to the FLPs in the solid state were characterized using X-ray crystal structure analyses and comprehensive 11B and 31P solid-state magic-angle-spinning (MAS-) NMR experiments. The free FLP, the Lewis adduct at the borane group, and the cyclic product resulting from isocyanide addition to both reaction centers, can be differentiated via11B and 31P isotropic chemical shifts, 11B nuclear electric quadrupole coupling constants, isotropic indirect 11B–31P spin–spin coupling constants, and 11B⋯31P internuclear distances measured by rotational echo double resonance.
Starting Page	2657
Ending Page	2664
Page Count	8
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	4
Issue Number	6
Journal	Chemical Science
DOI	10.1039/c3sc00082f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Magic angle spinning Phosphine Carbon Tert-Butyl isocyanide Nuclear Electric Acetylene X-ray crystallography Quadrupole Isotropy Lewis Addition reaction Nuclear magnetic resonance Isocyanide Adduct
Content Type	Text
Resource Type	Article
Subject	Chemistry

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