New orange solid dabcoammonium halochromates, C6H14 N2＋Cr2X2O6－,DAXC (X＝F, Cl) are easily synthesized by the reaction of dabco (1,4-diaza-bicyclo[2.2.2]octane) with CrO3 in a 1∶2 molar ratio in the presence of HF and HCl. Dabcoammonium halochromates (VI) are versatile reagents for the effective and selective oxidation of organic substrates to carbonyl derivatives .
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