A Direct Synthesis of Vinylic Phosphonates from Vinylic Halides

摘要: Abstract Approaches to the formation of vinylic phosphonates through direct replacement a halide by phosphorus have received considerable attention. With exception α,β-unsaturated systems1,2 attempts involving simple Michaelis-Arbuzov reaction conditions (heating, trivalent ester) failed.3–5 Other efforts transition metal salts as catalysts found greater, but still quite limited success.6–8