A method for preparing a high purity carbazolalkylphosphonic acid derivative
By simplifying the post-reaction processing procedure and employing a specific preparative chromatographic purification combined with freeze-drying, the problems of cumbersome preparation methods and insufficient purity in existing carbazole alkylphosphonic acid derivative preparation methods have been solved, enabling the industrial production of high-purity materials and improving the performance of perovskite photovoltaic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING INST OF TECH
- Filing Date
- 2026-04-28
- Publication Date
- 2026-06-23
AI Technical Summary
Existing methods for preparing carbazole alkylphosphonic acid derivatives are cumbersome, have long synthesis cycles, low product purity and yield, low automation, and are difficult to scale up industrially, thus failing to meet the demand for high-purity functional materials in perovskite photovoltaic devices.
By simplifying the post-reaction processing flow, a specific preparative chromatography combined with lyophilization process is used for purification, including reversed-phase column chromatography and gradient elution, combined with a reversed-phase chromatograph and a C18 column, to achieve the preparation of high-purity carbazole alkylphosphonic acid derivatives.
It significantly improves product purity to ≥99.0%, simplifies the operation process, reduces the intensity of manual operation, is suitable for large-scale industrial production, and improves the photoelectric conversion efficiency and stability of perovskite solar cells.
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Figure CN122255176A_ABST