Fig. 3: Further studies on the reaction.

a Gram-scale experiment. b Transformations of the products. aPd/C (10 wt %), B2(OH)4, H2O, DCM, rt. bLiAlH4, 1,4-dioxane, 0 oC-80 oC, 15 h. cNBS, Ag2CO3, HFIP, rt, 2 h. dTFA, DCM, 60 oC, 12 h. ePd(dba)2, TBAF·3H2O, Iodobenzene, THF, rt, 24 h. c Mechanistic studies. d Proposed mechanism.