Reference of 101335-11-9, A common heterocyclic compound, 101335-11-9, name is 2-Chloro-4-fluoro-1-iodobenzene, molecular formula is C6H3ClFI, 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.
General procedure: To 259 mg (26.9 mmol) pyrimidin-5-ol (J. Chem. Soc. 1956, 2033) in 200 mL DMF are added 108 mg (26.9 mmol) sodium hydride (60% dispersion in mineral oil). The mixture is stirred for 20 mm at r.t.. After that time, 500 mg (22.4 mmol) 2-fluoro-4-iodopyridine are added and the mixture is stirred for 12 h at 80 C. Subsequently the mixture is poured into water and extracted with ethyl acetate (3x). The combined organic layers are washed with brine. After drying over sodium sulphate, the solvent is removed in vacuo and the residue is purified by column chromatography (silica gel; heptane/EtOAc, 100/0 – 40/60).C9H6IN3O (M = 299.1 g/mol)ESI-MS: 300 [M+H]+ Rt(HPLC) : 2.87 min (method C) For the example XXVIII.4 6 eq. of the alcohol and 4 eq. of KOtBu as base are used and the reaction mixture is stirred at r.t. for 3 h.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; FLECK, Martin; ROTH, Gerald Juergen; NOSSE, Bernd; HEINE, Niklas; WO2013/92616; (2013); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com