| http://www.w3.org/ns/prov#value | - k is an integer of at least 1, and Z is hydrogen or an aliphatic hydrocarbon radical of less than 10 carbon atoms,in catalytic proximity to a catalytically active amount of a highly fluorinated sulfonic catalyst comprising a highly fluorinated aliphatic sulfonic acid or salt thereof or highly fluorinated sulfonylic catalyst comprising two highly fluorinated aliphatic sulfonyl groups attached dire
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