B01J 2231/44
Allylic alkylation, amination, alkoxylation or analogues
B01J2231/44 (Allylic alkylation, amination, alkoxylation or analogues) appears on 129 US grants and 162 published applications in this corpus.
Search patents in B01J- Granted patents
- 129
- Published applications
- 162
- Assignees
- 109
- Inventors
- 407
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 3 |
| 2002 | 3 | 2 |
| 2003 | 5 | 1 |
| 2004 | 2 | 6 |
| 2005 | 3 | 2 |
| 2006 | 3 | 5 |
| 2007 | 1 | 7 |
| 2008 | 2 | 2 |
| 2009 | 5 | 5 |
| 2010 | 6 | 3 |
| 2011 | 2 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 7 |
| 2014 | 2 | 3 |
| 2015 | 8 | 8 |
| 2016 | 7 | 15 |
| 2017 | 14 | 16 |
| 2018 | 8 | 11 |
| 2019 | 10 | 14 |
| 2020 | 11 | 12 |
| 2021 | 10 | 10 |
| 2022 | 6 | 11 |
| 2023 | 4 | 2 |
| 2024 | 2 | 4 |
| 2025 | 1 | 8 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for preparing (2S,3R,4R)-4,5-dihydroxyisoleucine derivative and intermediates thereof15 Sep 2026US 12,735,384 B2Inner Mongolia Duhe Innovation R & D Tech Co., Ltd
- Preparation method for pyrimidine-2-amine8 Sep 2026US 12,729,185 B2Institute for Basic Science
- Polyalkyl p-phenylenediamine anti-degradants and intermediates and preparation method thereof28 Jul 2026US 12,692,220 B2Sennics Co., Ltd.
- Diphenylamine-linked chiral bis(oxazoline) ligand without C2-symmetry, synthesis method and application thereof10 Feb 2026US 12,545,651 B2Zhejiang University of Technology
- Solvents for organometallic reagents28 Jan 2025US 12,208,377 B2The Texas A&M University System
- Catalyst for sp3-carbon-hydrogen-bond primary amination reaction, and method for preparing primary amine compound13 Aug 2026US 2026/0234096 A1West China Second University Hospital, Sichuan University
- Methods for preparing (2s,3r,4r)-4,5-dihydroxyisoleucine derivative and intermediates thereof1 Jan 2026US 2026/0001836 A1Inner Mongolia Duhe Innovation R & D Tech Co., Ltd
- Photocatalysts, preparation and use thereof4 Dec 2025US 2025/0367649 A1The Royal Institution for the Advancement of Learning/Mcgill University
- Thiazolothiazole catalysts and applications thereof27 Nov 2025US 2025/0360496 A1
- Enantioselective c-h amination with iron phthalocyanine and diammonium template catalysts20 Nov 2025US 2025/0352988 A1
Most cited
By later US patents
- New types of organometallic reagents and catalysts for asymmetric synthesis53US 4,885,376 AIowa State University Research Foundation, Inc. · 1989
- Regeneration of acidic catalysts31US 7,732,363 B2Chevron U.S.A.Inc. · 2010
- Asymmetric synthesis catalyzed by transition metal complexes with new chiral ligands13US 5,767,276 AThe Penn State Research Foundation · 1998
- Phosphine containing amino acids and peptides and methods of preparing and using same12US 5,541,289 AWashington University · 1996
- Chiral porous metal phosphonates for heterogeneous asymmetric catalysis12US 6,878,838 B2The University of North Carolina at Chapel Hill · 2005