Photocatalyzed Deuterodichloromethylation of Olefins Using Silacarboxylic Acids as Halogen‐Atom Transfer Reagents

Abstract A visible‐light‐induced deuterodichloromethylation of alkenes was developed with readily available and inexpensive deuterochloroform as the deuterodichloromethylation reagent. Silacarboxylic acids, which could generate silyl radicals through efficient visible‐light‐induced decarboxylation, were applied as halogen atom transfer agents. A series of deuterium‐containing gem ‐dichloroalkanes were prepared in good yields.