Pregled bibliografske jedinice broj: 180014
Isotopic scrambling in Di-C-13-labeled 2-butyl cation: Evidence for a protonated cyclopropane intermediate
Isotopic scrambling in Di-C-13-labeled 2-butyl cation: Evidence for a protonated cyclopropane intermediate // Journal of organic chemistry, 69 (2004), 10; 3598-3601 (međunarodna recenzija, članak, znanstveni)
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Naslov
Isotopic scrambling in Di-C-13-labeled 2-butyl cation: Evidence for a protonated cyclopropane intermediate
Autori
Walker, Gary ; Kronja, Olga ; Saunders, Martin
Izvornik
Journal of organic chemistry (0022-3263) 69
(2004), 10;
3598-3601
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Stable solutions; Carbonium-ions; Spectrum
Sažetak
The C-13 NMR spectrum of 2-butyl-1, 2-C-13(2) cation (1) is unchanged on heating the sample to -78 degreesC, indicating no isomerization to another isotopomer. In contrast, the spectrum of 2-butyl-2, 3-C-13(2) cation (2) shows rapid formation of all of the other isotopomers except 1. These results are consistent with a protonated cyclopropane intermediate in the rearrangement process. In this mechanism, either C-1 and C-2 or C-3 and C-4 interchange. Only the bond between C-2 and C-3 breaks
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
- MEDLINE
Uključenost u ostale bibliografske baze podataka::
- Chemical Abstracts
