Rainer Kupfer
University of Erlangen-Nuremberg
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Publication
Featured researches published by Rainer Kupfer.
Tetrahedron Letters | 1985
Rainer Kupfer; Ernst-Ulrich Würthwein
Abstract The title compounds 3 , 8 , and 10 have been synthesised by oxygen-alkylation of the alkoxy-substituted N-methylene amides 1 , 6 , 7 , and 9 using triethyloxonium salt 2 . The stereochemistry of the new salts is discussed in terms of an competition between the 2-aza-allenium- and the 2-aza-allyl-cation structures (I) and (II).
Chemische Berichte | 1985
Rainer Kupfer; Michael Nagel; Ernst-Ulrich Würthwein; Rudolf Allmann
Chemische Berichte | 1985
Rainer Kupfer; Ernst-Ulrich Würthwein; Michael Nagel; Rudolf Allmann
Chemische Berichte | 1984
Rudolf Allmann; Rainer Kupfer; Michael Nagel; Ernst-Ulrich Würthwein
Synthesis | 1984
Rainer Kupfer; Stefan Meier; Ernst-Ulrich Würthwein
Chemische Berichte | 1985
Ernst-Ulrich Würthwein; Rainer Kupfer; Rudolf Allmann; Michael Nagel
Chemische Berichte | 1987
Magda Krestel; Rainer Kupfer; Rudolf Allmann; Ernst-Ulrich Würthwein
Synthesis | 1984
Rainer Kupfer; Stefan Meier; Ernst-Ulrich Würthwein
Angewandte Chemie | 1983
Ernst-Ulrich Würthwein; Rainer Kupfer; Claus Kaliba
Chemische Berichte | 1992
Rainer Kupfer; Stefan Meier; Ernst-Ulrich Würthwein
