Ofeles, Caseys and Chatts Routes to Metal Carbenes

5 Ofele s, Casey s and Chatt s Routes to Metal Carbenes 

6 Lappert s Seminal Work on Bis(amino)carbene Complexes 

In an extremely short period of time, Lappert s group prepared more than 100 bis(amino)carbene complexes of almost all transition metals of groups VI, VIII, IX, X, and XI [60-62]. With regard to the reaction conditions, the general observation was that the V-arylolefins 31b were less reactive than the V-alkyl 

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