Biaryl synthesis via coupling of arylthallium bis (trifluoroacetates) with a catalytic amount of lithium tetrachloropalladate
RA Kjonaas, DC Shubert
Index: Kjonaas, Richard A.; Shubert, David C. Journal of Organic Chemistry, 1983 , vol. 48, # 11 p. 1924 - 1925
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Citation Number: 14
Abstract
2 [ArT1 (OCOCF,),] LizPdC14+ ArAr+ TlOCOCF,+ T1 (OCOCF3),(1) temperature for 5 days or refluxing tetrahydrofuran (THF)(67" C) for 5 h. It will tolerate air, moisture,'and even carboxyl groups (Table I, entry f). In most cases, isolation of the product is achieved by aqueous workup followed by filtration through a small amount of silica gel to remove the residual traces of thallium salts. Several research groups have observed the formation of ...
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