Process for the synthesis of benzothiophenes

Details Process for the synthesis of benzothiophenes Process for the synthesis of benzothiophenes

1997-09-22

1999-11-02

Kight, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D33356

Patent

active

059773839

ABSTRACT:
The instant invention provides improved processes for preparing benzothiophenes utilizing cation exchange resins.

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Ple, et al., "Synthesis of Substituted Benzo [b] by Thiophene, [b] Acid-Catalyzed Cyclization of Thiophenyl Acctals and Ketone", J. Heterocyclic Chem., 25, 1271-1272 (1988).
Kost et al., "Isomerization of 3-Substitutal Indoles, Benzo Furens, and Benzo[b] Thiophenes", Translated from Zhurnal Organicheskoi Khimii, vol. 6, No. 7, pp. 1503-1505 (Jul. 1970).
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