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The four-electron reduction of CO 2 in the presence of secondary aromatic amines is described for the first time to access aminals. Under metal-free hydrosilylation conditions, the four C–O bonds of CO 2 are cleaved, and the organocatalysts are able to balance the reactivity of CO 2 to promote the selective formation of two C–N and two C–H bonds. The methodology enables the formation of various symmetrical and unsymmetrical aminals.
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Frogneux et al. (2015) studied this question.
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