Hidden talent: Often perceived to be too thermodynamically and kinetically inert to be a useful chemical feedstock, carbon dioxide adds to allenes under exceptionally mild reductive conditions in the presence of a palladium pincer complex to give beta,gamma-unsaturated carboxylic acids (see scheme). This transformation is discussed in the context of the requirements for CO(2) fixation. DMF = N,N-dimethylformamide, Tf = trifluoromethanesulfonyl.
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Michael North (2009) studied this question.
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