Reducing agents, acetal stability

Semicarbazones are used as protecting groups as a consequence of their stability to reducing agents such as potassium borohydride, sodium boro-hydride and lithium borohydride. Semicarbazones are cleaved by strong acids and by heating in acetic anhydride-pyridine. " ... 

Apart from its structural interest, SnCl2 is important as a widely used mild reducing agent in acid solution. The dihydrate is commercially available for use in electrolytic tin-plating baths, as a sensitizer in silvering mirrors and in the plating of plastics, and as a perfume stabilizer in toilet soaps. The anhydrous material can be obtained either by dehydration using acetic... 

Electroless copper solutions contain copper salts and a reducing agent, such as formaldehyde the preparations for industrial use contain also stabilizers like 2-mercaptobenzothiazole, to prevent decomposition other than on activated areas of the workpiece, and accelerators like ethylenediamine-tetra-acetic acid—which increase the rate at which metal is deposited. Formulating such solutions requires achieving a balance between stability on the one hand and speedy deposition on the other. 

Di arge Agent DP. [BASF] Stabilized sulfoxylate deriv. reducing agent for discharge and discharge resist printing on polyester, acetate, triacetate, and their blends with polyamide. 

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