e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Pharmacologically active benzo [b] thiophen derivatives. Part VI. 4-and 6-Halogeno-derivatives of N-2-chloroethyl-N-ethyl-3-aminomethylbenzo [b] thiophen …
NB Chapman, K Clarke, SN Sawhney
Index: Chapman,N.B. et al. Journal of the Chemical Society [Section] C: Organic, 1968 , p. 2747 - 2751
Cyclisation of (m-chlorophenylthio) acetone in hot polyphosphoric acid gave a mixture of 4- chloro-and 6-chloro-3-methylbenzo [b] thiophen (7: 4), and of (m-bromophenylthio) acetone a mixture of 4-bromo-and 6-bromo-3-methylbenzo [b] thiophen (1: 3). These products were identified by the unambiguous synthesis of both 4-and 6-chloro-3-methylbenzo [b] thiophen, and of 4-bromo-3-methylbenzo [b] thiophen. Bromination of the substituted 3-methylbenzo ...