A variety of aldehydes were converted into acylals in excellent ields with acetic anhydride in the presence of a catalytic amount of tin (¢?) chloride supported
The diaryldiselenides reacted with titanocene hydried (Cp2TiH) generted from Cp2TiCl2/i-BuMgBr to give arylselenium complexes of titanocene.They reacted readily