To date, a handful of recent studies have explored the use of dichloromethane as a C1 precursor for cyclopropanation (Scheme 1C). Xie and co-workers employed dinuclear gold catalysts to activate dichloroalkenes for cyclopropanation and annulation reactions. Uyeda and co-workers showcased a reductive cyclopropanation utilizing a Ni-PyBOX catalyst, representing another significant advancement. Pitre and co-workers extended Rusling's foundational work by developing a Vitamin B12-photocatalytic cyclopropanation of Michael acceptors using CH2Cl2. Most recently, Lloret Fillol and co-workers reported a photoredox-mediated nickel-catalyzed cyclopropanation of alkenes. While these approaches demonstrate innovative strategies, the reliance on superstoichiometric metal reductants or stringent anaerobic glovebox conditions presents challenges to scalability and practicality.