Cyanoolefins, hydrocyanation

Cyanoolefins Hydrocyanated in Unpromoted Reactions Using Ni[P(0-o-tolyl) ]3... 

Non-conjugated cyanoolefins are hydrocyanated in the presence of tetrakis(tri-p-tolyl phosphite)nickel(O) at 25 °C. Characteristic in this reaction is the relative stability of the RNiL CN intermediates which allows spectroscopic observation of these species either by NMR or IR. The ratio of linear/branched products in the unpromoted reaction is strongly dependent upon the bulkiness of tbe substrate [15] (Table 3). 

Table 3. Unpromoted hydrocyanation of cyanoolefins using Ni[P(0-o-toIyl)3]4. Olefin Product Ratio N/B ...

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