Water → Salicylaldehyde

Participants

Reaction Steps

In substantially the same manner as in Example 1, 0.16 part of sodium hydroxide, 60 parts of water, 3.2 parts of 5 percent palladium-on-charcoal, 264 parts of methylene chloride and 5 parts of o-hydroxybenzyl alcohol are stirred in the presence of air and refluxed at 45° C.-48° C. for approximately three hours; VPC analysis of the reaction mixture at 160° C. reveals aldehyde formation. The crude reaction mixture is filtered and separated as in Example 1. 2.01 Parts of o-hydroxybenzaldehyde are isolated; 1.49 parts of unreacted o-hydroxybenzyl alcohol are also recovered indicating the reaction had not gone to completion.

Provenance & Evidence