Ferrocenes mercury salts

SftT 1 substitutions also proceed easily in compounds forming highly stabilized secondary carbocations such as benzyhydrol , ferrocene and analogous systems. A variety of leaving groups can be utilized in these reactions including halides, alkoxy and alkylthio in the presence of mercury salts and ethers. 

Interaction of iron(II) chloride with the lithium salt of R4B2NJ (R = Me, Et) gives sandwiches 61 (R = Me, Et) (67ZAAC1, 96MI4), resembling in electronic properties those of ferrocene (99ICA(288)17). The n- rf-) complex stems from the further complex-formation of 61 (R = Me, Et) with mercury(II) salts via the unsubstituted nitrogen atom. 

NITRIC ACID, MERCURY(II) SALT (10045-94-0) A powerful oxidizer. Violent reaction with reducing agents, combustibles, phosphinic acid, hypophosphoric acid, petroleum hydrocarbons. Forms heat- and/or shock-sensitive compounds with acetylene (forms mercury acetylide), ethanol (forms mercury fulminate), ferrocene, isobutene, phosphine, potassium cyanide, sulfur. Incompatible with strong acids, acetic anhydride, ammonia, ammonium hexacyanoferrate(II), organic azides, citric acid, hydrazinium perchlorate. 

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