NL145672C - - Google Patents
Info
- Publication number
- NL145672C NL145672C NL145672DA NL145672C NL 145672 C NL145672 C NL 145672C NL 145672D A NL145672D A NL 145672DA NL 145672 C NL145672 C NL 145672C
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—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
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
- C07D311/44—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
- C07D311/46—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring
- C07D311/48—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring with two such benzopyran radicals linked together by a carbon chain
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL665419X | 1949-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL145672C true NL145672C (en) |
Family
ID=19798730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL145672D NL145672C (en) | 1949-03-29 |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB665419A (en) |
NL (1) | NL145672C (en) |
-
0
- NL NL145672D patent/NL145672C/xx active
-
1949
- 1949-10-14 GB GB26470/49A patent/GB665419A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB665419A (en) | 1952-01-23 |