A high chemoselective reduction of saturated aldehydes and ketones in the presence
of unsaturated carbonyls (aromatic and α,β-unsaturated carbonyls) has been realized
by using the structurally unique, bowl-shaped tris(2,6-diphenylbenzyl)tin hydride
(TDTH) under the influence of Me2AlCl or BF3·OEt2 as Lewis acids.
chemoselective reduction - aldehyde - ketone - tin - Lewis acid