shown that nickel containing Complex Reducing Agents NaH-RONa-NiX2 as such or in the presence of ligands are very efficient in desulfurizing organiccompounds such as sulfur containing heteroaromatic substrates, aryl thioethers, dithioketals, sulfoxides or sulfones.
The insertion reaction of isocyanide into a C-S bond of dithioacetals is catalyzed by GaCl3 or TiCl4 to afford thioimidates containing an alpha-alkylthio group. Balanced thiophilicity of these Lewis acids is critical for efficient catalysis.