Intramolecular 1,1-carboboration versus intermolecular FLP addition in reactions of boranes and bis(phenylethynyl)telluroether

Tsao, Fu An; Lough, Alan J.; Stephan, Douglas W.

doi:10.1039/c4cc09258a

Cited by 27 publications

(19 citation statements)

References 33 publications

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“…Chemical diagrams for tellurium(II) compounds described herein, 125-151, 82,[125][126][127][128][129][130][131][132][133][134][135][136][137][138] forming…”

Section: Zero-and One-dimensional Aggregates Sustained By Te(ii) … π(mentioning

confidence: 99%

Main group metal lone-pair⋯π(arene) interactions: a new bonding mode for supramolecular associations

et al. 2016

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Crystal structures of the heavier main group elements in low oxidation states have been evaluated for the presence of supramolecular element(lp)⋯π(arene) interactions that are structure-directing. It is revealed that when present, these interactions lead to zerodimensional, binuclear aggregates but higher-nuclearity species are sometimes observed, with one-dimensional supramolecular chains of varying topology being prominent. By contrast, two-dimensional aggregation based on element(lp)⋯π(arene) interactions are rare. In summary, interactions of main group metal lone-pairs with aromatic rings are revealed as synthons capable of assembling molecules into supramolecular aggregates. † Electronic supplementary information (ESI) available: For ESI (illustrations of supramolecular aggregation based on main group element(lone-pair)⋯π(arene) interactions for 1-157), see DOI:

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“…Chemical diagrams for tellurium(II) compounds described herein, 125-151, 82,[125][126][127][128][129][130][131][132][133][134][135][136][137][138] forming…”

Section: Zero-and One-dimensional Aggregates Sustained By Te(ii) … π(mentioning

confidence: 99%

Main group metal lone-pair⋯π(arene) interactions: a new bonding mode for supramolecular associations

et al. 2016

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“…More recently our group has investigated the use of heavier group 16 congeners, in particular tellurium. The synthesis of a 6-membered Te/B heterocycle (60) was reported via a dialkynyltellurium species undergoing two subsequent carboboration reactions [124,125]. Interestingly, in some cases another product derived from initial carboboration reaction followed by an FLP addition to the alkyne fragment of a second Te/B species was obtained.…”

Section: Alternative Lewis Acids: Phosphorusmentioning

confidence: 98%

Non-conventional Lewis Acids and Bases in Frustrated Lewis Pair Chemistry

Caputo

Stephan

2015

The Chemical Bond III

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The discovery of frustrated Lewis pairs (FLPs) was based on the reactions of combinations of sterically demanding phosphine donors and electrophilic boranes with dihydrogen. Since these early findings, the range of species that exhibit FLP chemistry has broadened dramatically to include a series of Lewis acids and bases. In this review, we describe a variety of such systems and the corresponding reactivity of FLPs derived from group 13-16 species.

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“…B(C 6 F 5 ) 3 to form an example of less often observed six-membered heterocyclic ring systems ( 33 ) (see Scheme 10 ). 10 , 30 A dimeric product was formed in a reversible competitive pathway.…”

Section: Five-membered Heterocycles By 11-carboborationmentioning

confidence: 99%