Trifluoroacetic acid → HCID 20314460, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of thiophene (8.7 g.) and acetic anhydride (60 ml.) is added to a stirred suspension of 4-(4-chlorophenyl)(diacetoxyiodo)benzene (21.7 g.) in a mixture of acetic anhydride (50 ml.) and trifluoroacetic acid (15 ml.) below -10° C. during 1 hour. The mixture is stirred at -10° C. for 2 hours, at ambient temperature for 18 hours and is then filtered. The filtrate is concentrated to small volume in vacuo, and ether is added. The solid so formed is filtered off and crystallised from toluene to give 4-(4-chlorophenyl)phenyl-2-thienyliodonium trifluoroacetate (13.7 g.), m.p. 175°-177° C.

Provenance & Evidence