Process for preparing 1-indanone compounds by intramolecular Friedel-Crafts reaction of alpha,alpha-dialkylmalonate derivatives
US-11952335-B2 · Apr 9, 2024 · US
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having two rings
having two rings · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C61/13 |
| Official title | having two rings |
| Display label | having two rings |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2020 | 1 |
| 2022 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Synthesis of bicyclo[2.2.2]octane derivatives
US-11518726-B2 · Dec 6, 2022 · US
Process for preparing 1-indanone compounds by intramolecular friedel-crafts reaction of alpha,alpha-dialkylmalonate derivatives
US-2022356143-A1 · Nov 10, 2022 · US
Synthesis of bicyclo[2.2.2]octane derivatives
US-2020270191-A1 · Aug 27, 2020 · US
Process for the preparation of 4-(8-(2-chlorophenoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)bicyclo[2.2.1]heptan-1-ol and novel intermediates therefor
US-9580420-B2 · Feb 28, 2017 · US
Inhibitors of the influenza A virus M2 proton channel
US-9403777-B2 · Aug 2, 2016 · US
Process for the preparation of 4-(8-(2-chlorophenoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)bicyclo[2.2.1]heptan-1-ol and novel intermediates therefor
US-2016039813-A1 · Feb 11, 2016 · US
Method for producing alicyclic carboxylic acid and catalyst used in same
US-9084985-B2 · Jul 21, 2015 · US