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2024 (English) In: Acta Crystallographica Section E: Crystallographic Communications, E-ISSN 2056-9890, Vol. 80, no 2, p. 143-147Article in journal (Refereed) Published
Abstract [en] We report the synthesis and structural characterization of three crystalline borylated ortho -silylaryl trifluoromethanesulfonates: 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trimethylsilyl)phenyl trifluoromethanesulfonate, C16 H24 BF3 O5 SSi (1a ), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trimethylsilyl)phenyl trifluoromethanesulfonate, C16 H24 BF3 O5 SSi (1b ), and 2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trimethylsilyl)phenyl trifluoromethanesulfonate, C17 H26 BF3 O5 SSi (2 ), which are versatile aryne precursors. For all three compounds, the heteroatom substituents are almost coplanar with the central aromatic moiety. C—heteroatom bonding metrics are unexceptional and fall withing the typical range of C—B, C—Si, and C—O single bonds. Despite numerous electronegative sites, only weak intermolecular interactions are observed in the solid state.
Place, publisher, year, edition, pages
International Union Of Crystallography, 2024
Keywords solid-state structure, aryne precursor, pinacole borane, crystal structure
National Category
Organic Chemistry
Identifiers urn:nbn:se:uu:diva-526557 (URN) 10.1107/S2056989024000264 (DOI) 001184382600011 () 38333140 (PubMedID)
Funder Swedish Research Council, 2019-05424Swedish Research Council, 2021-03658
2024-04-152024-04-152025-12-09 Bibliographically approved