ELECTROPHILIC CHEMISTRY OF THE CUBIC ARSAALKYNE TETRAMER (ASCTBU)(4) - ARSONIUM IONS OF ETHYLATION (ETOTF), BENZYLATION (PHCH(2)OTF) AND MONOPROTONATION AND DIPROTONATION (FSO3H SO2)/

Authors
LAALI KK NIXON JF JOHNSON JA
Citation
Kk. Laali et al., ELECTROPHILIC CHEMISTRY OF THE CUBIC ARSAALKYNE TETRAMER (ASCTBU)(4) - ARSONIUM IONS OF ETHYLATION (ETOTF), BENZYLATION (PHCH(2)OTF) AND MONOPROTONATION AND DIPROTONATION (FSO3H SO2)/, Heteroatom chemistry, 5(5-6), 1994, pp. 503-506
Citations number
14
Categorie Soggetti
Chemistry
Journal title
Heteroatom chemistry → ACNP
ISSN journal
10427163
Volume
5
Issue
5-6
Year of publication
1994
Pages
503 - 506
Database
ISI
SICI code
1042-7163(1994)5:5-6<503:ECOTCA>2.0.ZU;2-H
Abstract
The cubic arsaalkyne tetramer 2 reacts at roam temperature with ethyl triflate to give the As-ethylated arsonium salt 4. A similar reaction of 2 with benzyl triflate (generated in situ via PhCH(2)Cl/AgOTf) give s the As-benzylated salt 5. Low-temperature protonation of 2 with FSO3 H/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 phosph onium ions derived from the tetraphosphacubane 3. The FAB mass spectru m of 4 and its decomposition products (FAB-CAD-MS/M (S) over bar) ave also discussed.