Abstract 3-(Triphenylphosphoniochlorido) acrylic and 2, 3-dichloropropionic acids react with triphenylphosphine to form 1, 2-bis (triphenylphosphoniochlorido) ethane. Under analogous conditions, 2, 3-dibromopropionic acid undergoes debromination followed by triphenylphosphine addition to give, after water treatment, 3-(triphenylphosphoniobromido) propionic acid. 2, 3-Dihalopropionitriles react similarly, providing 3-( ...
