With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.31241-19-7,5-Methoxy-2,3,3-trimethyl-3H-indole,as a common compound, the synthetic route is as follows.
EXAMPLE II Under an inert hydrogen or argon atmosphere 1.4 ml of 1M solution of BBr3 in dichloro-methane is added to a solution of 1.2 10-3 mole of 5-methoxy 2,3,3-trimethyl indolenine in 1.5 ml dichloromethane at 0 C. under stirring so as to obtain 5-hydroxy 2,3,3-trimethyl-indolenine.
31241-19-7, The synthetic route of 31241-19-7 has been constantly updated, and we look forward to future research findings.
Reference：
Patent; Essilor International (Compagnie Generale d’Optique; US5114621; (1992); A;,
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