Electric Literature of 5414-21-1,Some common heterocyclic compound, 5414-21-1, name is 5-Bromovaleronitrile, molecular formula is C5H8BrN, 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 solution of 5-hydroxy-7-((2-methyl-[l,r-biphenyl]-3-yl)methoxy)-2,3- cli hydro- 1 /7-indene-4-carbaldehyde (0.50 g, 1.39 mmol) in DMF (10 mL), potassium carbonate (0.288 g, 2.08 mmol) and 5-bromopentanenitrile (0.25 g, 1.53 mmol) were added and stirred the mixture at room temperature for 5 h. After completion, the reaction mixture was diluted with water (20 mL) and extracted with EtOAc (3 x 30 mL). The combined organic layer was dried over sodium sulfate and concentrated. The resulting crude was purified by flash chromatography (silica gel, 12 g cartridge) using 20% EtOAc in hexanes as eluent to obtain 5-((4-formyl-7-((2-methyl-[l,l’-biphenyl]-3-yl)methoxy)- 2,3-dihydro- lH-inden-5-yl)oxy)pentanenitrile (Yield: 0.425 g, 69%) as white solid. LCMS (ES) m/z = 440.51 [M+H]+; NMR (400 MHz, DMSO-d6) d ppm: 1.74-1.80 (m, 2H), 1.86-1.90 (m, 2H), 1.97-2.01 (m, 2H), 2.21 (s, 3H), 2.59 (m, 2H), 2.69 (m, 2H), 3.11 (m, 2H), 4.20 (m, 2H), 5.31 (s, 2H), 6.79 (s, 1H), 7.22 (d, 7 = 7.6 Hz, 1H), 7.28-7.40 (m, 4H), 7.44-7.48 (m, 3H), 10.34 (s, 1H).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 5-Bromovaleronitrile, its application will become more common.
Reference:
Patent; JUBILANT BIOSYS LIMITED; VENKATESHAPPA, Chandregowda; D A, Jeyaraj; PENDYALA, Muralidhar; SIVANANDHAN, Dhanalakshmi; RAJAGOPAL, Sridharan; (233 pag.)WO2019/175897; (2019); A1;,
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