No abstract

resulting reddish-brown residue was dissolved in ethyl ether/ petroleum ether (1:9, 2 mL) and chromatographed on alumina (activity 3, 5 g) using ethyl ether/petroleum ether (1:9) as eluent. Two distinct orange bands were observed. The faster moving, more intense band yielded a fraction containing the exo compound 46 (0.0023 g, 42%), while the slower band contained the endo complex 47 (0.0009 g, 16%).Complex 46: red crystals; mp 210-212 °C; Rf 0.47, ethyl ether/ methanol /hexane (3:1:6) as eluent; IR (thin film) 2967,1609,

Bei Bestrahlung in Gegenwart von CH2I2 werden die Alkene (I), (III), (V), (VII) bzw. (IX) zu den Derivaten (II), (IV), (VI), (VIII) bzw. (X) cyclopropaniert; aus (VIIc) entsteht überwiegend ein Gemisch (69% Ausb.) aus dem Alken (VIId) und dem Cyclopropan (VIIId).

Verschiedene Alkyliodide (I).