Magnesium, tris salts amines

Me2SO solution b Hibbert (1974) Protonated amine salt with magnesium tris(hexafluoro-acetylacetonate) (Truter and Vickery, 1972) 4 CF3COOH solution (Alder et al., 1968) Altman et al. (1978) 1 Protonated amine salt with copper(n) tris(hexafluoroacetylacetonate) (Truter and Vickery, 1972) 9 Hydrobromide salt (Pyzalka et al., 1983) Staab el al. (1983) Staab et al. (1988a) JSaupe et al. (1986) Staab and Saupe (1988) Staab et al. (1988b) Zirnstein and Staab (1987). 

The reactivities of alkyl halides are in the sequence RI > RBr > RCl and MeX > EtX > PrX. Benzyl hahde reactions with tin do not require catalysts (equation 2). For less reactive halides, the catalysts and promoters employed include metals (sodium, magnesium, zinc, or copper), Lewis bases (amines, triorganophosphines and -stibines, alcohols, or ethers), iodides, and onium salts (R4MX). The use of tin-sodimn alloys can result in tri- or tetraorganotin products. Electrochemical synthesis has also been reported, e.g. the formation of R2SnX2 from the oxidation of anodic tin by RX in benzene solution and the formation of ILtSn from RI (R = Me or NCCH2CH2) and cathodic tin. 

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