Palladium-catalyzed controlled carbopalladation of benzyne

E Yoshikawa, KV Radhakrishnan…

Index: Yoshikawa, Eiji; Radhakrishnan; Yamamoto, Yoshinori Journal of the American Chemical Society, 2000 , vol. 122, # 30 p. 7280 - 7286

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Citation Number: 178

Abstract

2-Trimethylsilylphenyl trifluoromethanesulfonate 1a, a benzyne precursor, reacted with the allylic chlorides 2a-f in the presence of CsF (2.0 equiv) and Pd2 (dba) 3⊙ CHCl3 (2.5 mol%)- dppf (5 mol%) in a 1: 1 mixed solvent of CH3CN and THF to produce the phenanthrene derivatives 3 along with their minor regioisomers 4 in good yields (i) and the reaction of 1a with 2a and the internal alkynes 15a, ce afforded the naphthalene derivatives 16 in ...