ISSN:
1042-7163
Keywords:
Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The cubic arsaalkyne tetramer 2 reacts at room temperature with ethyl triflate to give the As-ethylated arsonium salt 4. A similar reaction of 2 with benzyl triflate (generated in situ via PhCH2Cl/AgOTf) gives the As-benzylated salt 5. Low-temperature protonation of 2 with FSO3H/SO2 produces a mixture of arsonium ions 6 and 7 resulting from mono- and diprotonation. The NMR characteristics of the resulting arsonium ions are discussed and compared with those of the corresponding phosphonium ions derived from the tetraphosphacubane 3. The FAB mass spectrum of 4 and its decomposition products (FAB-CAD-MS/MS) are also discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hc.520050514
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