Search found 3 matches
- Mon May 30, 2022 2:16 am
- Forum: Chemistry forum
- Topic: Pyridine michael-like addition on nitrogen? (us patent)
- Replies: 4
- Views: 2839
Re: Pyridine michael-like addition on nitrogen? (us patent)
In one of cited patents, 2-vinyl pyridine was used too in same workup (formed pyridyl ethyl 4-cyanopyridinium compound). Marked -Same building block Can you describe 1st, 2nd and 3rd carbon atoms in this chemicals: acrylamide and 2-vinylpyridine? 1 - terminal alkene 2 - double bond of alkene 3 atom ...
- Sun May 29, 2022 12:20 pm
- Forum: Chemistry forum
- Topic: Pyridine michael-like addition on nitrogen? (us patent)
- Replies: 4
- Views: 2839
Re: Pyridine michael-like addition on nitrogen? (us patent)
Can i use alkenes in same reaction?
I need long chain terminal alkene, or same plus functional groups on opposite end from pyridine nitrogen for surfactant.
I need long chain terminal alkene, or same plus functional groups on opposite end from pyridine nitrogen for surfactant.
- Sun May 29, 2022 11:50 am
- Forum: Chemistry forum
- Topic: Pyridine michael-like addition on nitrogen? (us patent)
- Replies: 4
- Views: 2839
Pyridine michael-like addition on nitrogen? (us patent)
Hello! On US4672121 4-cyanopyridine is quaternized with acrylamide and hcl in isopropanol (no water). Obtained N-(2-carbamoylethyl)-4-cyanopyridinium chloride. EXAMPLE 1 N-(2-carbamoylethyl)-4-cyanopyridinium chloride Isolation of title compound The following procedure was also applied to the prepar...