Regioselective halogenation of nicotine and substituted nicotines
US7501520B2 · kind B2 · utility
3Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2007 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Jan 16, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0814
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A first aspect of the present invention is a method for of making a compound of Formula Ia or Formula Ib:wherein X is halo, by (a) metalating a precursor compound to form an organometallic intermediate, and then reacting the organometallic intermediate with a halogenating agent to produce the compound of Formula Ia or Formula Ib.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.