Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
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45/00
Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
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C07C45/61
by reactions not involving the formation of >C = O groups
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C07C45/67
by isomerisation; by change of size of the carbon skeleton
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C07C45/68
by increase in the number of carbon atoms
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C07C45/72
by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
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C07C45/74
combined with dehydration
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