Some reactions of diorganotin dihydrides with diorganotin dichlorides

Hydrostannylation of Propargylic Alcohols Using Mixed Tin Hydrides

“…[7] The equilibrium is fast, but the resulting mixture reacts as if it contains only the hydride halide. [8] Few examples of hydrostannylation of alkynes using these reagents have been reported.…”

Synthesis of dineophyltin dihydride and stereoselective hydrostannation of alkynes and (E)-trisubstituted alkenes

“…Diorganotin hydride halides, R 2 SnHX, have been known for many years and can be prepared simply by mixing dialkyltin dihydride and the corresponding dialkyltin dihalide [18]. The equilibrium is reached fast and the resulting mixture reacts as if it contains only the hydride halide [19]. In this case, mixing dineophyltin dihydride (3) and dineophyltin dibromide (6) leads to dineophyltin bromohydride (27), according to Scheme 3.…”

NMR Studies of Three Types of Highly Coordinated Organotin Hydrides: Chemo-, Regio-, and Stereoselective Reduction of 2,3-Epoxy Ketones

“…Chemoselective Reduction of Epoxides by Bu 2 SnIH − Lewis Base Systems (Type A). If organotin hydride could possess a Sn−I bond, the reductive cleavage of epoxides is expected, because the efficient nucleophilic attack of iodide from the Sn−I bond to epoxy rings has already been demonstrated. 6a,b Fortunately, Bu 2 SnIH can be easily prepared by the redistribution reaction between Bu 2 SnH 2 and Bu 2 SnI 2 . We have recently found that Bu 2 SnIH characteristically has quite low reducing ability for aldehydes .…”

“…Spectroscopic Data for Bu 2 SnFH − HMPA (Type B). The redistribution to Bu 2 SnFH is difficult compared with that to Bu 2 SnIH because of poor solubility of Bu 2 SnF 2 10b. We have reported that the formation of Bu 2 SnFH swiftly proceeds in the presence of an equimolar amount of HMPA, providing a clear liquid (eq 1) …”