A new method for the construction of indole nucleus was written by Iwao, Masatomo. And the article was included in Heterocycles in 1994.Synthetic Route of C11H14ClNO2 This article mentions the following:
Directed lithiation of N-tert-butoxycarbonylanilines I (X = H, Y = H, F, MeO; X = Me, CF3, MeO, Cl, F, Y = H) and subsequent reaction with 1-tert-butyldimethylsilyl-1-phenylsulfinylethene gave the conjugate addition products which, without isolation, were cyclized to 1-tert-butoxycarbonyl-2-(phenylthio)indolines II under thermal sila-Pummerer reaction conditions. In the experiment, the researchers used many compounds, for example, tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6Synthetic Route of C11H14ClNO2).
tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Synthetic Route of C11H14ClNO2
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics