Microwave-Assisted Lewis Acid Catalysis: Application to the Synthesis of Alkyl- or Arylhalogermanes
摘要:
Under microwave irradiation, alkyl- or arylhalogermanes RnGeX4, (R = Et, Bu, Ph; X = Cl, Br) are obtained by redistribution reactions of R4Ge with GeX4. These experimental conditions permit the synthesis of such compounds in good yield in a few minutes at atmospheric pressure. The direct Friedel-Crafts germylation of benzene and toluene by germanium tetrachloride also has been performed, but yields were low.
Under microwave irradiation, alkyl- or arylhalogermanes RnGeX4, (R = Et, Bu, Ph; X = Cl, Br) are obtained by redistribution reactions of R4Ge with GeX4. These experimental conditions permit the synthesis of such compounds in good yield in a few minutes at atmospheric pressure. The direct Friedel-Crafts germylation of benzene and toluene by germanium tetrachloride also has been performed, but yields were low.