... Tetrahedron Letters. Volume 54, Issue 40, 2 October 2013, Pages 5477–5480. ... To remedy this limitation, in this Letter, much more inexpensive iron(III) acetylacetonate [Fe(acac) 3 ]–NaI is shown to effectively catalyze the deprotection of dithioacetals with 30% H 2 O 2 to produce ...