THE PARTIAL REDUCTION OF CARBOXYLIC ACIDS TO ALDEHYDES via 3-ACYLTHIAZOLIDINE-2-THIONES WITH DIISOBUTYLALUMINUM HYDRIDE

Abstract
3-Acylthiazolidine-2-thiones (1), prepared from free carboxylic acids and thiazolidine-2-thione by using 2-chloro-1-methylpyridinium iodide in the presence of triethylamine, were reduced to the aldehydes with diisobutylaluminum hydride (DIBAH) in good yields even when excess amount of DIBAH was used.