Conclusion:

The use of group 6 metal hexacarbonyls provide a route to substitution of the chloride in PCTFE with acid derivatives. The reaction is not surface selevctive and is limited to preparing amides and carboxylates. The reaction mechanism for the reaction may be formulated as follows (Scheme VII):

Reaction of PCTFE with Cr (CO)6 involves oxidative addition to the carbon - chlorine bond of PCTFE by a coordinatively unsaturated chromium complex to give the polymer - metal carbonyl complex , (1). The polymer - metal carbonyl complex then undergoes migratory - insertion of carbon monoxide to generate the acyl complex , (2). Sebsequent nucleophilic attack by water or amine gives acid or amide darivative.


HOME PAGE FOR PAPER 022

ABSTRACT

INTRODUCTION

EXPERIMENTAL

DISCUSSION

ACKNOWLEDGMENTS

REFERENCES

PRESENT LOCATION OF AUTHORS