Sequential Nucleophilic Substitution of Phosphorus Trichloride with Alcohols in a Continuous‐Flow Reactor and Consideration of a Mechanism for Reduced Over‐reaction through the Addition of Imidazole
sequential nucleophilic substitution of highly electrophilic and inexpensive phosphorustrichloride with three different alcohols including ones that contain acid- and/or basic-labile functionalities, and various asymmetric phosphotriesters were synthesized in good-to-high yields (53–83 %). Mechanistic study suggested that Berry pseudorotation was a rate-limiting step in the nucleophilic substitution