prov:value
| - reR1??? independently of the others, is identical or different, branched or unbranched, aliphatic or aromatic hydrocarbon radicals having 1 to 20 carbon atoms, preferably unbranched, aliphatic or aromatic hydrocarbon radicals having 1 to 9 carbon atoms and particularly preferably methyl, ethyl or phenyl,d is 10 to 1000, preferably 101 to 750, in particular 201 to 500, in the presence of platinum o
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