with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6

Full Title

Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings > ortho- or peri-condensed with carbocyclic rings or ring systems > Benzo[b]pyrans, not hydrogenated in the carbocyclic ring > other than with oxygen or sulphur atoms in position 2 or 4 > with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6

Child Classifications

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• C07D 311/72 3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols