Normal Pressure Double Carbonylation of Aryl Halides Using Cobalt(II) Chloride in the Presence of either Sodium Sulfide or Sodium Borohydride
Tetracarbonylcobaltate ion generated by a treatment of cobalt(II) chloride with either sodium sulfide or sodium borohydride under a normal pressure of carbon monoxide was capable of catalyzing carbonylation of aryl halides in the presence of calcium hydroxide and methyl iodide to give arylglyoxylic acids in good selectivity.
Itoh, Kenji,Miura, Masahiro,Nomura, Masakatsu
p. 4151 - 4152
(2007/10/02)
ONE-STEP SYNTHESIS OF α-HYDROXY ACIDS VIA REDUCTIVE DOUBLE CARBONYLATION OF ORGANIC HALIDES
Palladium-catalyzed carbonylation of organic halides with water in the presence of calcium hydroxide or lithium hydroxide in primary or secondary alcoholic solvents afforded α-hydroxy acids.