Insertions of unsymmetric alkynes into the metal-carbon bonds of nickelacycles: What determines the regiochemistry?
Although the insertion of alkynes into transition-metal - carbon bonds plays an important role in synthesis, the regioselectivities observed with unsymmetric alkynes have usually been interpreted on the basis of steric effects. In this perspective paper,
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|Source:||Helvetica Chimica Acta|