Processes for preparing 2-(4-chlorophenyl)-n-((2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-5-yl)methyl)-2,2-difluoroacetamide
US-12577223-B2 · Mar 17, 2026 · US
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by reaction of cyanogen halides, e.g. ClCN, with organic compounds
by reaction of cyanogen halides, e.g. ClCN, with organic compounds · 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 | C07C253/04 |
| Official title | by reaction of cyanogen halides, e.g. ClCN, with organic compounds |
| Display label | by reaction of cyanogen halides, e.g. ClCN, with organic compounds |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes for preparing 2-(4-chlorophenyl)-n-((2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-5-yl)methyl)-2,2-difluoroacetamide
US-2022213056-A1 · Jul 7, 2022 · US
Processes for preparing 2-(4-chlorophenyl)-N-((2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-5-yl)methyl)-2,2-difluoroacetamide
US-11312699-B2 · Apr 26, 2022 · US
Processes for preparing 2-(4-chlorophenyl)-n-((2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-5-yl)methyl)-2,2-difluoroacetamide
US-2021171493-A1 · Jun 10, 2021 · US
Installation and process for the preparation of hydrogen cyanide
US-10865118-B2 · Dec 15, 2020 · US
Polymeric materials made from vanillin
US-10287237-B1 · May 14, 2019 · US
Installation and process for the preparation of hydrogen cyanide
US-2018215626-A1 · Aug 2, 2018 · US
Installation and process for the preparation of hydrogen cyanide
US-9944533-B2 · Apr 17, 2018 · US
Polymeric materials made from vanillin
US-9815775-B1 · Nov 14, 2017 · US
Preparation and thermal curing of single-ring bis(cyanate) ester monomers
US-9434685-B1 · Sep 6, 2016 · US
Installation and process for the preparation of hydrogen cyanide
US-2016194212-A1 · Jul 7, 2016 · US
Polymeric materials made from vanillin
US-9353219-B1 · May 31, 2016 · US
Preparation and thermal curing of single-ring Bis(cyanate) ester monomers
US-9309192-B1 · Apr 12, 2016 · US
Preparation and thermal curing of single-ring bis(cyanate) ester monomers
US-9126902-B1 · Sep 8, 2015 · US