Borylcarbyne Complexes: [Mo(CBR<sub>2</sub>)(CO)<sub>2</sub>{HB(pzMe<sub>2</sub>)<sub>3</sub>}] (BR<sub>2</sub> = B(NMe<sub>2</sub>)<sub>2</sub>, BO<sub>2</sub>C<sub>6</sub>H<sub>4</sub>; pz = pyrazol-1-yl)
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The sequential treatment of [Mo(CBr)(CO)2{HB(pzMe2)3}] (pz = pyrazol-1-yl) with nBuLi and ClBR2 (BR2 = B(NMe2)2, O2C6H4) in tetrahydrofuran provides the borylcarbyne complexes [Mo(CBR2)(CO)2{HB(pzMe2)3}], in contrast to the reactions of many haloborane electrophiles, which result in the formation of the hydroxypentylidyne complex [Mo{C(CH2)4OH}(CO)2{HB(pzMe2)3}] via solvent ring opening.
创建时间：
2011-06-27
