Catalytic asymmetric synthesis of chiral carboxylic acids and heterocycles with CO2

The development of asymmetric catalytic methods using CO2 as a C1 synthon is an important strategy for constructing chiral carboxylic acids and heterocyclic compounds. In recent years, through the design of innovative catalytic systems, efficient and highly selective syntheses of chiral carboxylic acids, spanning central to axial chirality, have been achieved from diverse substrates, including alkenes, alkynes, and organic electrophiles. Concurrently, significant progress has also been made in the synthesis of chiral heterocycles, particularly 2-oxazolidinones and cyclic carbonates. This review systematically summarizes key advances in this field from 2021 to mid-2026. Organized by target product structure, the discussion first addresses chiral carboxylic acids, categorized by substrate type (carbon-carbon unsaturated bonds and organic electrophiles). Key strategies, including carbo-carboxylation, boracarboxylation, hydrocarboxylation, dicarboxylation, and electroreductive carboxylation, are elaborated in detail, along with their stereoselectivity control mechanisms. The discussion then covers chiral heterocycles, summarizing the catalytic asymmetric construction of chiral 2-oxazolidinones and chiral cyclic carbonates. Finally, the major challenges and future directions in this field are discussed.