Process for preparing 3-aryl-benzo{b} thiophenes

Details Process for preparing 3-aryl-benzo{b} thiophenes Process for preparing 3-aryl-benzo{b} thiophenes

2005-07-26

2005-07-26

Lambkin, Deborah C. (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S051000

Reexamination Certificate

active

06921827

ABSTRACT:
The present invention relates to a process for preparing a compound of formula (I): which includes cyclodehydrating a compound of formula (II): in the presence of an acid activated clay or acid activated zeolite catalyst and in the presence of a suitable solvent

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Kim, A Facile Synthesis of 3-aryl-Substituted-Benzothiophenes via a Lewis Acid Mediated Cyclization of 2-Arylthio-Acetophenones, Tetrahedron Letters, vol. 40, p. 2909-2912 (1999).

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