(5-Chloro-6-iodo-3-pyridinyl)methanol → 5-Chloro-6-iodo-3-pyridinecarbaldehyde

Participants

Reaction Conditions

Reaction Steps

A mixture of (5-chloro-6-iodo-3-pyridinyl)methanol (392 mg, 1.455 mmol), CrO2 (Magtrieve) (2.444 g, 29.1 mmol), and DCM (20 ml) was stirred at 40° C. for 24 h. Some starting material was still observed by TLC. More CrO2 (0.61 g) was added and the suspension stirred at 40° C. overnight. TLC showed full conversion. Filtration and concentration afforded 5-chloro-6-iodo-3-pyridinecarbaldehyde (261 mg, 67%) as a brown solid pure enough to be used in the next step.

Provenance & Evidence