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Reaction of some 2,3-steroidal epoxides with tributyl(carbethoxymethylene) phosphorane. Formation of A-nor derivatives

✍ Scribed by Forcellese, Maria Luigia; Calvitti, Settimia; Camerini, Elio; Martucci, Immacolata; Mincione, Enrico


Book ID
127278667
Publisher
American Chemical Society
Year
1985
Tongue
English
Weight
401 KB
Volume
50
Category
Article
ISSN
0022-3263

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## Abstract Reduction of the isoprene—PCl~3~ adduct 1 with magnesium powder, or with Si~2~Cl~6~, furnished __P__‐chloro‐3‐methyl‐phosphol‐2‐ene, 2, in satisfactory yield. Further reduction of 2 with Si~2~Cl~6~ gave the new trichlorosilyl‐3‐methylphosphol‐2‐ene, 3. The reaction of 2 with magnesium p