cis-2-Chloro-9,10-dihydro-9,10-ethanoanthracene-11,12-diol → 2-Chloro-9,10-dihydro-9,10-anthracenedicarboxaldehyde

Participants

Reaction Steps

To a solution of 2.7 g. of cis-2-chloro-9,10-dihydro-9,10-ethanoanthracene-11,12-diol in 20 ml. of acetic acid at room temperature is added 5.0 g. of lead tetraacetate (containing 10% acetic acid) portionwise. The mixture is stirred for 10 minutes, cooled in an ice-water bath and the crystals which form are collected by filtration and washed with cold acetic acid, giving the desired product as off-white crystals, m.p. 113°-115° C.

Provenance & Evidence