By Formation of the C2,C3 Bond

The only recent (as of 2003) use of such bond formation involves two carbon atoms that are activated by double bonds or as isocyanides. The following examples illustrate the present limited scope of this type of synthesis. 

2-Bis(benzylideneamino)cyclohexane (72) gave 2,3-diphenyldecahydroqui-noxaline (73) (Pb cathode, C anode, Et4NOTs, MsOH, McjNCHO 59%) analogs likewise.  

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