Durch Feststoffumsetzung aus den binären Komponenten wurden 2H‐CuScO2, R‐CuGaO2 und R‐CuYO2 erstmals dargestellt und ihre Kristallstrukturen bestimmt sowie diejenigen von R‐CuAlO2 und 2H‐CuAlO2 verfeinert. Charakteristische Strukturparameter (Gitterkonstanten und Bindungsabstände) werden im Hinblick auf mögliche Cu+Cu+‐Wechselwirkungen diskutiert.
Crossed acyloins were efficiently prepared by the thiazolium-catalysed condensation of two different unhindered aldehydes, using one mol equivalent of one aldehyde with three mol equivalents of the other. Conversion into the cor-
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