%0 Journal Article %T Diborodichloromethane as Versatile Reagent for Chemodivergent Synthesis of gem-Diborylalkanes. %A Fang T %A Wang L %A Wu M %A Qi X %A Liu C %J Angew Chem Int Ed Engl %V 63 %N 3 %D 2024 Jan 15 %M 38059834 %F 16.823 %R 10.1002/anie.202315227 %X The development of boron reagents is crucial for synthetic chemistry. Herein, we present a scalable and practical synthesis of diborodichloromethane (DBDCM) through the reaction of trichloromethyllithium with bis(pinacolato)diboron (B2 pin2 ). The resulting DBDCM reagent serves as a basic synthetic unit for the construction of various structurally diverse gem-diborylalkanes through controllable C-Cl functionalizations. Moreover, we have developed consecutive tetra-functionalizations of DBDCM for the construction of diverse tertiary and quaternary carbon containing molecules. The use of isotopically enriched 13 C-chloroform and 10 B2 pin2 enables the synthesis of isotopically enriched 13 C-DBDCM and 10 B-DBDCM reagents, which are beneficial for the convenient synthesis of carbon-13 and boron-10 molecules.