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lithium hydroxide; ammonium chloride; bis-triphenylphosphine-palladium(II) chloride in tetrahydrofuran; pentane to a stirred soln. of dibromoborane in pentane is added PdCl2(PPh3) at 0°C under argon, addn. of zinc compd. (in THF), stirring at room temp. for 3 h, adding aq. soln. of LiOH and iodocompd., heating for 15 h; purifn. with column chromy. (silica/hexane) after extn. with hexane;

in pentane under Ar, addn. of borane to isopropanol in pentane at 0°C, stirring at room temp. for 2h; sepn. of upper layer, extn. of lower layer with pentane, combined pentane soln. concd. (reduced pressure), distd.;

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