Reference of 78607-36-0 , The common heterocyclic compound, 78607-36-0, name is 2-Chloro-3-iodopyridine, molecular formula is C5H3ClIN, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
To a flame-dried flask were added Pd(PPh3)4 (10 mol %), Xantphos (10 mol %), Cs2CO3 (3 eq) and 2-chloro-3-iodopyridine (1.2 eq). Then, 1NB (1 eq) and DMF (0.15 M) were added to the reaction mixture under an N2 atmosphere. The reaction mixture was stirred for 10 min at room temperature, and then heated at 140 C. in a pre-heated oil bath for 24 h. After that, the reaction mixture was cooled to room temperature, diluted with CH2Cl2, filtered through a short pad of Celite, and washed with CH2Cl2. The combined organic extracts were concentrated under reduced pressure and the resulting residue was purified by column chromatography on silica gel to provide the product DFE-1NB-2 in 42% yield.
The synthetic route of 78607-36-0 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Arizona Board of Regents on behalf of Arizona State University; Li, Jian; Zhu, Zhi-Qiang; (232 pag.)US2018/337345; (2018); A1;,
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