Application of 56341-37-8,Some common heterocyclic compound, 56341-37-8, name is 6-Chlorooxindole, molecular formula is C8H6ClNO, 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.
Under argon atmosphere, 3,5-bis(trifluoromethyl)phenylisocyanate(255mg, 1.0mmol) was dissolved in tetrahydrofuran(5mL). A solution of 6-chloro-oxindole(184mg, 1.1mmol) in tetrahydrofuran(5ml) and triethylamine(0.3mL) were added, and the mixture was stirred at room temperature for 4 hours. The reaction mixture was poured into diluted hydrochloric acid and extracted with ethyl acetate. After the organic layer was washed with water and brine, dried over anhydrous magnesium sulfate, the residue obtained by evaporation under reduced pressure was purified by chromatography on silica gel(n-hexane:ethyl acetate=4:1) to give the title compound(172.2mg, 40.7%) as a pink solid.1H-NMR(DMSO-d6): delta 3.97(2H, s), 7.29(1H, dd, J=8.1, 2.1Hz), 7.41(1H, d, J=8.1Hz), 7.88(1H, s), 8.04(1H, d, J=2.1Hz), 8.38(2H, s), 10.93(1H, s).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 6-Chlorooxindole, its application will become more common.
Reference:
Patent; Institute of Medicinal Molecular Design, Inc.; EP1514544; (2005); A1;,
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