Ralph Rohde
Schering AG
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Publication
Featured researches published by Ralph Rohde.
Tetrahedron Letters | 1985
Ralph Rohde; Günter Neef; Gerhard Sauer; Rudolf Wiechert
Abstract 3,3-(2,2-Dimethyltrimethylene-1,3-dioxy)-5(10),9(11)-estradien- 17-one is converted to its 5α,10α-epoxide by iron phthalocyanine/iodosylbenzene in a highly stereoselective manner.
Tetrahedron Letters | 1993
Eckhard Ottow; Ralph Rohde; Wolfgang Schwede; Rudolf Wiechert
Abstract A new access to 11β-(alkynyl)estranes I is described. The synthesis of key intermediate 11β-ethynylestr-4-ene-3,17-dione 8 can be achieved by stereoselective thermodynamically controlled formation of 11β-aldehyde 1 , its conversion to vinyl bromide 7 by Wittig reaction and subsequent dehydrobromination. Broad variation of the acetylenic 11β-substitution is possible by nucleophilic substitution as well as transition metal mediated coupling reactions.
Archive | 1984
Ralph Rohde; Klaus Annen; Günter Neef; Rudolf Wiechert; Sybille Beier; Walter Elger; David Henderson
Archive | 1986
Günter Neef; Rudolf Wiechert; Eckard Ottow; Ralph Rohde; Sybille Dr. Beier; Walter Dr Elger; David Dr. Henderson
Archive | 1984
Günter Neef; Gerhard Sauer; Rudolf Wiechert; Sybille Dr. Beier; Walter Dr Elger; David Dr. Henderson; Ralph Rohde
Archive | 1984
Günter Neef; Gerhard Sauer; Rudolf Wiechert; Helmut Hofmeister; Ralph Rohde; Klaus Annen; Henry Laurent; Sybille Dr. Beier; Wolfgang Losert; Walter Dr Elger; David Dr. Henderson
Archive | 1984
Ralph Rohde; Klaus Annen; Günter Neef; Rudolf Wiechert; Sybille Dr. Beier; Walter Dr Elger; David Dr. Henderson
Archive | 1984
Guenter Neef; Gerhard Sauer; Rudolf Wiechert; Helmut Hofmeister; Ralph Rohde; Klaus Annen; Henry Laurent; Sybille Beier; Wolfgang Losert; Walter Elger; David Henderson
Archive | 1986
Eckhard Ottow; Guenter Neef; Ralph Rohde; Rudolf Wiechert; Sybille Beier; Walter Elger; David Henderson
Archive | 1986
Eckhard Ottow; Günter Neef; Ralph Rohde; Rudolf Wiechert; Sybille Dr. Beier; Walter Dr Elger; David Dr. Henderson
