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Short Paper | Regular issue | Vol 100, No. 7, 2020, pp.1084-1093
Published online, 25th May, 2020
DOI: 10.3987/COM-20-14255
Insertion Reaction of Chalcogens into an Al–P Bond

Tatsuya Yanagisawa, Yoshiyuki Mizuhata,* and Norihiro Tokitoh*

*Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan


We examined the reactions of a phosphanylalumane (>Al–P<) with chalcogen sources as a part of our investigation of the reactivity of the Al–P bonds. In the case of sulfur source, two S atoms were inserted into the Al–P bond to afford an [Al–S–P–S] heterocycle. Structural analysis and theoretical calculations revealed a charge-separated structure between the [Al]+ and [S2P] moieties of the [Al–S–P–S] 4-membered ring, which is different from the [B–S–P–S] ring having concrete B–S σ-bonds in the 4-membered ring.