Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings

CCHEMISTRY METALLURGY C07Organic chemistry C07DHETEROCYCLIC COMPOUNDS

C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings

C07D311/02ortho- or peri-condensed with carbocyclic rings or ring systems C07D311/04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring C07D311/06with oxygen or sulfur atoms directly attached in position 2 C07D311/08not hydrogenated in the hetero ring C07D311/10unsubstituted C07D311/12substituted in position 3 and unsubstituted in position 7 C07D311/14substituted in position 6 and unsubstituted in position 7 C07D311/16substituted in position 7 C07D311/18substituted otherwise than in position 3 or 7 C07D311/20hydrogenated in the hetero ring C07D311/22with oxygen or sulfur atoms directly attached in position 4 C07D311/24with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen C07D311/26with aromatic rings attached in position 2 or 3 C07D311/28with aromatic rings attached in position 2 only C07D311/30not hydrogenated in the hetero ring C07D311/322,3-Dihydro derivatives C07D311/34with aromatic rings attached in position 3 only C07D311/36not hydrogenated in the hetero ring C07D311/382,3-Dihydro derivated C07D311/40Separation C07D311/42with oxygen or sulfur atoms in position 2 and 4 C07D311/44with one hydrogen atom in position 3 C07D311/46unsubstituted in the carbocyclic ring C07D311/48with two such benzopyran radicals linked together by a carbon chain C07D311/50with elements other than carbon and hydrogen in position 3 C07D311/52Enol-esters or -ethers, or sulfur analogues thereof C07D311/54substituted in the carbocyclic ring C07D311/56without hydrogen atoms in position 3 C07D311/58other than with oxygen or sulfur atoms in positions 2 or 4 C07D311/60with aryl radicals attached in position 2 C07D311/62with oxygen atoms directly attached in position 3 C07D311/64with oxygen atoms directly attached in position 8 C07D311/66with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen C07D311/68with nitrogen atoms directly attached in position 4 C07D311/70with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6 C07D311/723,4-Dihydro-derivatives having in position 2 at least one methyl radical and in position 6 an oxygen atom C07D311/74Benzo[b]pyrans, hydrogenated in the carbocyclic ring C07D311/76Benzo[c]pyrans C07D311/78Ring systems having three or more relevant rings C07D311/80Dibenzopyrans Hydrogenated dibenzopyrans C07D311/82Xanthenes C07D311/84with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen C07D311/86Oxygen atoms C07D311/88Nitrogen atoms C07D311/90with hydrocarbon radicals substituted by amino radicals, directly attached in position 9 C07D311/92Naphthopyrans Hydrogenated naphthopyrans C07D311/94condensed with rings other than six-membered C07D311/96spiro-condensed with carbocyclic rings or ring systems