Low temperature flow nuclear magnetic resonance detection of transient intermediates on the actual reaction pathway in nucleophilic aromatic substitution

1977 ◽  
pp. 335 ◽  
Author(s):  
Colin A. Fyfe ◽  
Alexander Koll ◽  
Sadru W. H. Damji ◽  
Chris D. Malkiewich ◽  
Peter A. Forte
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Low Temperature ◽  
Reaction Pathway ◽  
Nucleophilic Aromatic Substitution ◽  
Aromatic Substitution ◽  
Transient Intermediates ◽  
Resonance Detection ◽  
Nuclear Magnetic

scholarly journals Destabilized carbocations. Nuclear magnetic resonance detection and reactivities of aryl α-thioformamidyl cations

1987 ◽  
Vol 65 (8) ◽  
pp. 1800-1803 ◽  
Author(s):  
F. J. Ablenas ◽  
B. E. George ◽  
M. Maleki ◽  
R. Jain ◽  
A. C. Hopkinson ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Low Temperature ◽  
Magnetic Resonance Spectroscopy ◽  
Nuclear Magnetic Resonance Spectroscopy ◽  
Resonance Spectroscopy ◽  
Resonance Detection ◽  
Nuclear Magnetic

A series of α-aryl and diarylthioformamidyl cations were observed by low-temperature nuclear magnetic resonance spectroscopy. These ions undergo efficient cyclization and deprotonation to give benzothiophenes.

Nuclear Magnetic Resonance Detection of Two Distinctly Different Chains in the Orthorhombic Crystalline Phase of Polyethylenes†

1998 ◽  
Vol 31 (15) ◽  
pp. 5010-5021 ◽  
Author(s):  
Luminita Hillebrand ◽  
Angelika Schmidt ◽  
Andreas Bolz ◽  
Michael Hess ◽  
Wiebren Veeman ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Crystalline Phase ◽  
Resonance Detection ◽  
Nuclear Magnetic

A 19F nuclear magnetic resonance and Raman spectroscopic investigation of the reaction of iodine oxide pentafluoride with the Lewis acids, antimony and arsenic pentafluoride

1978 ◽  
Vol 56 (17) ◽  
pp. 2253-2258 ◽  
Author(s):  
Morley Brownstein ◽  
Ronald J Gillespie ◽  
John P. Krasznai
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Raman Spectroscopy ◽  
Magnetic Resonance ◽  
Low Temperature ◽  
Oxygen Atom ◽  
Spectroscopic Investigation ◽  
Lewis Acids ◽  
Raman Spectroscopic ◽  
Nuclear Magnetic

The reactions of IOF5 with SbF5 and with AsF5 have been investigated at low temperature by 19F nmr and Raman spectroscopy. It was found that SbF5 forms labile 1:1 and 2:1 complexes whereas AsF5 forms only a 1:1 complex. The IOF5 is bound through its oxygen atom to the Lewis acids AsF5, SbF5, or (SbF5)2.

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