Copper-and base-free Sonogashira-type cross-coupling reaction of triarylantimony dicarboxylates with terminal alkynes under an aerobic condition
X Wang, W Qin, N Kakusawa, S Yasuike, J Kurita
Index: Wang, Xuan; Qin, Weiwei; Kakusawa, Naoki; Yasuike, Shuji; Kurita, Jyoji Tetrahedron Letters, 2009 , vol. 50, # 46 p. 6293 - 6297
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Citation Number: 19
Abstract
A simple copper-and base-free palladium-catalyzed Sonogashira-type cross-coupling by the use of triarylantimony dicarboxylates is described. Reaction of triarylantimony diacetates with terminal alkynes in the presence of 1mol% of PdCl2 (PPh3) 2 catalyst led to the formation of cross-coupling products in good to excellent yields. The reaction proceeded effectively under an aerobic condition, in that two of the three aryl groups on antimony ...
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