B01J 2231/346
Mannich type reactions, i.e. nucleophilic addition of c-h acidic compounds, their r3si-
Official title: Mannich type reactions, i.e. nucleophilic addition of C-H acidic compounds, their R3Si- or metal complex analogues to aldimines or ketimines
B01J2231/346 (Mannich type reactions, i.e. nucleophilic addition of c-h acidic compounds, their r3si-) appears on 24 US grants and 25 published applications in this corpus.
Search patents in B01J- Granted patents
- 24
- Published applications
- 25
- Assignees
- 21
- Inventors
- 62
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 0 |
| 2009 | 1 | 3 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 3 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 2 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Access to chiral bisphenol (BPOL) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation26 May 2026US 12,637,403 B2The Chinese University of Hong Kong
- Method of preparing indolin-2-one compound and method of using indolin-2-one8 Oct 2024US 12,110,273 B2Hefei University of Technology
- Access to chiral bisphenol (BPOL) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation20 Feb 2024US 11,905,237 B2The Chinese University of Hong Kong
- Synthetic method and application of 2-hydroxyphenyl-5-pyrazinyl ketone5 Sep 2023US 11,746,092 B2Hefei University of Technology
- Method for the synthesis of solid heterogeneous chiral catalysts and their use in stereoselective reactions1 May 2018US 9,957,286 B2Universidad De Guanajuato
- Novel compound or salt thereof, catalyst, method of preparing novel compound or salt thereof and method of preparing mannich product8 Oct 2026US 2026/0308178 A1Okinawa Institute of Science and Technology School Corporation
- Method and device for manufacturing triacetonamine23 Jan 2025US 2025/0026720 A1Industrial Technology Research Institute
- Access to chiral bisphenol (bpol) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation23 May 2024US 2024/0166586 A1The Chinese University of Hong Kong
- Method of preparing indolin-2-one compound and method of using indolin-2-one8 Feb 2024US 2024/0043383 A1Hefei University of Technology
- Synthetic method and application of 2-hydroxyphenyl-5-pyrazinyl ketone3 Feb 2022US 2022/0033362 A1Hefei University of Technology
Most cited
By later US patents
- Lewis acid catalyst composition18US 6,436,866 B1Asahi Kasei Kabushiki Kaisha · 2002
- Asymmetric synthesis catalyzed by transition metal complexes with new chiral ligands13US 5,767,276 AThe Penn State Research Foundation · 1998
- Monophosphine compound, transition metal complex thereof and production method of optically active compound using the complex as asymmetric catalyst11US 7,790,882 B2Sumitomo Chemical Company, Limited · 2010
- Basic ionic liquids11US 8,609,572 B2The Queen's University of Belfast · 2013
- Microencapsulated lewis acid4US 6,352,954 B1Japan Science and Technology Corporation · 2002