Versatile CO₂ Transformations into Complex Products: A One-pot Two-step Strategy

CO₂ transformations are conducted in a one-pot two-step procedure for the synthesis of complex molecules. The selective 4 e^- reduction of CO₂ with a hydroborane reductant affords a reactive and versatile bis(boryl)acetal intermediate which is subsequently involved in condensation reaction or carbene-mediated C-C coupling generation.