Copper(I) t-butoxide

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Copper(I) t-butoxide
Cu4 OBut 4.svg
Other names
Molar mass 546.644 g·mol−1
Appearance White solid
Density 1.62 g/cm3 (octamer)
Melting point 260 °C (500 °F; 533 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Copper(I) t-butoxide is an alkoxide of copper(I). It is a white sublimable solid. It is a reagent in the synthesis of other copper compounds.[1]

The compound was originally obtained by salt metathesis from lithium tert-butoxide and copper(I) chloride.[2] An octameric form was obtained by alcoholysis of mesitylcopper:[3]

8 CuC6H2Me3 + 8 HOBu-t → 8 HC6H2Me3 + [CuOBu-t]8


  1. ^ Tetsuo Tsuda, Takeshi Takeda, Akira Tsubouchi (2008). "Copper(I) t-Butoxide". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rc212.pub2. ISBN 978-0471936237.{{cite encyclopedia}}: CS1 maint: uses authors parameter (link)
  2. ^ Tsuda, T.; Hashimoto, T.; Saegusa, T. (1972). "Cuprous tert-butoxide. New and useful metalation reagent". Journal of the American Chemical Society. 94 (2): 658–659. doi:10.1021/ja00757a069.{{cite journal}}: CS1 maint: uses authors parameter (link)
  3. ^ Håkansson, M.; Lopes, C.; Jagner, S. (2000). "Copper(I) alkoxides: preparation and structural characterisation of triphenylmethoxocopper(I) and of an octanuclear form of t-butoxocopper(I)". Inorganica Chimica Acta. 304 (2): 178–183. doi:10.1016/S0020-1693(00)00081-5.{{cite journal}}: CS1 maint: uses authors parameter (link)