59 research outputs found
1-Benzyl-4-aza-1-azoniabicyclo[2.2.2]octane tribromide as a regenerable and useful reagent for bromination of phenols under mild conditions
796-8001-Benzyl-4-aza-1-azoniabicyclo[2.2.2]octane tribromide has been examined over several phenolic compounds under mild conditions. The reaction gives brominated phenols in good to excellent yields. Straightforward work-up of the reaction yields pure products in several cases.</b
Oxidation of alcohols with 1-butyl-4-aza-1-azoniabicyclo[2.2.2]octane chlorochromate (BAAOCC) under non-aqueous conditions
577-5801-Butyl-4-aza-1-azoniabicyclo[2.2.2]octane
chlorochromate (BAAOC) in the presence of AlCl3 affords an efficient
and mild system for oxidation of a variety of alcohols, giving the
corresponding aldehydes and ketones in refluxing acetonitrile. The experimental
procedure is simple and the products are isolated straightforward in good to
excellent yields.</i
Oxidation of Alcohols with 1-Butyl-4-aza-1-azoniabicyclo[2.2.2]octane Chlorochromate (BAAOCC) under Nonaqueous Conditions.
577-5801-Butyl-4-aza-1-azoniabicyclo[2.2.2]octane
chlorochromate (BAAOC) in the presence of AlCl3 affords an efficient
and mild system for oxidation of a variety of alcohols, giving the
corresponding aldehydes and ketones in refluxing acetonitrile. The experimental
procedure is simple and the products are isolated straightforward in good to
excellent yields.</i
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