The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2,6-Dichloro-3-fluoropyridine(SMILESS: ClC1=NC(=CC=C1F)Cl,cas:52208-50-1) is researched.Synthetic Route of C4H6O3. The article 《New synthesis method of 2,6-dichloro-3-fluoropyridine》 in relation to this compound, is published in Huagong Shikan. Let’s take a look at the latest research on this compound (cas:52208-50-1).
2, 6-Dichloro-3-nitropyridine was synthesized from 2, 6-dichloropyridine by nitrification reaction. Then 2,6-dichloro-3-aminopyridine was synthesized from 2,6-dichloro-3-nitropyridine by the catalytic hydrogenation reduction reaction. At last, 2,6-dichloro-3-fluoropyridine was synthesized from 2,6-dichloro-3-aminopyridine by the diazotization reaction. Overall yield of three steps reaction was 69.3%. The target compound was confirmed by MS and NMR. The factors such as nitric acid concentration, the type and amount of catalyst and the molar ratio of sodium nitrite were discussed in detail. This synthesis route has high yield, high selectivity, and better prospect of industrialization.
Although many compounds look similar to this compound(52208-50-1)HPLC of Formula: 52208-50-1, numerous studies have shown that this compound(SMILES:ClC1=NC(=CC=C1F)Cl), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem