Synthese von benzanellierten Carbacephamen 2.Mitt.
摘要:
The treatment of 2-(oxo-1-azetidinyl)-benzyltriphenylphosphponium salts 9 and 13b, c, d, and e with base leads to carbacephemes 10 and 14b, c, d, and e which can be reduced to the title compounds. The reaction of 14 with acids does not result in 3-oxocephames by cleavage of the enolether function. Instead, the 3-alkoxyquinolines 15b and c have been obtained.