Fluoroalkyl silyl ketene acetals and a process for preparing the same

摘要

A fluoroalkyl silyl ketene acetal of the formula <IMAGE> wherein Rf is a fluoroalkyl group, and R and R' are the same or different and each is an alkyl group, which is prepared by reacting or fluorinated carboxylic acid of the formula RfCH2COOR' wherein Rf and R' are respectively the same as defined above with a silylating agent represented by a formula R3SiOTf wherein Tf represents a trifluoromethane sulfonyl group and R is the same as defined above.