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A selenium-based “alkahest”: reactive dissolutions of metals and metal compounds with n -alkylammonium polyselenide solutions

https://doi.org/10.1039/d3qi01632c

Turnley, Jonathan W; Deshmukh, Swapnil D; Boulos, Victoria M; Spilker, Robert; Breckner, Christian J; Ng, Kevin; Liu, Judy Kuan-Yu; Miller, Jeffrey T; Kenttämaa, Hilkka I; Agrawal, Rakesh (October 2023, Inorganic Chemistry Frontiers)

The solution-processing of metal chalcogenides offers a promising route to improve the manufacturing of semiconductor devices. The amine–thiol solvent system has been deemed an “alkahest” for its ability to dissolve a wide range of metals and metal chalcogenides. Therefore, it enables convenient synthesis of metal sulfides. However, in the literature there are limited reports of analogous selenium-based “alkahest” chemistry. Here we show that solutions containing n-alkylammonium polyselenides can dissolve a wide range of metals and metal compounds through the formation of soluble metal polyselenides. These metal polyselenides can subsequently be utilized as precursors for the synthesis of a wide range of binary and multinary metal selenide thin films and nanoparticles, including Cu(In,Ga)Se2, Cu2ZnSnSe4, and Ag2ZnSnSe4.
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Total Syntheses and Absolute Configuration Assignment of (+)-Sootepdienone, (−)-Jambolanin C, (−)-Jambolanin I, and (−) - Gibberodione

https://doi.org/10.1021/acs.joc.0c02747

Ng, Kevin; Khoury, Michael; Minehan, Thomas Gerard (February 2021, The Journal of Organic Chemistry)
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A Single-Flask Synthesis of Morita–Baylis–Hillman Adducts from Ethoxyacetylene and Carbonyl Compounds: Synthesis of Subamolides D and E

https://doi.org/10.1021/acs.orglett.6b01772

Ng, Kevin; Minehan, Thomas G. (August 2016, Organic Letters)

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A single-flask synthesis of α-alkylidene and α-benzylidene lactones from ethoxyacetylene, epoxides/oxetanes, and carbonyl compounds

https://doi.org/10.1016/j.tetlet.2015.12.041

Ng, Kevin; Tran, Vincent; Minehan, Thomas (January 2016, Tetrahedron Letters)

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