Reactions of P(III) Chlorides with Aldehydes: I. Synthesis of Primary Intermediates of the Reactions of Aliphatic Aldehydes with P(III) Chlorides Possessing Electrophilic Properties

摘要

An approach to investigation of reactions of electrophilic P(III) chlorides with aliphatic aldehydes is developed. Its essence is the removal of HC1 impurity from chloride and catalytic blocking of electrophilic center of the carbonyl group. For these purposes nitrogen-containing organic bases and alkyl vinyl ethers are used. Three types of primary intermediates with the nearest P(III) environment POCl2, O2PCl, and O3P are synthesized. It is established that the stability of intermediates increases with the growing acceptor properties of substituents at P(III) and donor properties of the aldehyde fragment.