Reaktionen von Sulfensäurefluoriden: Synthese,Charakterisierung und NMR-Studien von Perhalogenalkylmercaptotetrafluorphosphoranen

Reactions of Sulfenic Fluorides: Synthesis, Characterization and N.M.R. Studies of Perhalogenalkylmercaptotetrafluorphosphoranes Marcaptotetrafluorophosphoranes R_fSPF₄ (R_f = CF₃, CF₂Cl) are obtained by the reaction of sulfenic fluorides R_fSF with PF₃. The compounds formed are extremely sensitive to hydrolysis. They react with H₂O yielding R_fSH, HF and POF₃ as well as with an excess of R_fSF to give PF₅ and R_fSSR_f. NMR studies were performed at various temperatures.     

Synthese und Reaktionen von Bicyclo[6.4.0]dodecan-3-carbonsäure-Derivaten

Synthesis and Reactions of the Bicyclo[6.4.0]dodecane-3-carboxylic Acid Derivatives The synthesis and some consecutive reactions of the compounds 5-8 , derivatives of bicyclo[6.4.0]dodecane-3-carboxylic acid ( 1 ), are described. The esters 7 and 8 can be obtained by Baeyer-Villiger oxidation of 2-hydroxy-8-methyltricyclo[7.3.1.0^2,7]tridecan-13-one ( 4 ) and subsequent hydrolysis of the lactone 5 . The structure and configuration of these compounds has been evaluated by spectroscopic techniques (mainly 2D-NMR methods). The formation of 7 via 1,2-H shift and subsequent isomerization to 8 has been studied. The esters 11 and 13 are formed stereospecifically from 7 and 8 .