Pyrimidine ylids

Other heterocyclic ylids have been generated in the gas-phase by collisional reduction of stable ylid cation-radicals using synthetic strategies similar to that described for 35+, e.g., imidazol-2-ylidene [149], thiazol-2-ylidene [150], pyrazine ylids [151], pyrimidine ylids [152], and pyridinium methylids [153]. 

Alkenes, perfluoro-cycloadditions to benzyl azide, 60, 35 pyridine imines and ylids, 60, 36 Alkenes, perfluoro-, as heterocyclic precursors, 59, 10 Alkylation, free-radical, of 1,3-dimethyluracil, 55, 227 A-Alkylation, [ 1,2,4]triazolo[ 1,5-u)-pyrimidines, 57, 110 Alkynes, photocycloaddition to uracils, rearrangement with HCNO elimination, 55, 149 Alkynes, ethoxy-, cyclaoddition to hexafluoroacetone azine, 60, 32 Alkynes, perfluoro-, as heterocyclic precursors, 59, 10 Allenes... 

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