Addition of LiOHMT (OHMT = O-2,6-dimesitylphenoxide) to W(O)(CH-t-Bu)(PMe[subscript 2]Ph)[subscript 2]Cl[subscript 2] led to WO(CH-t-Bu)Cl(OHMT)(PMe[subscript 2]Ph) (4). Subsequent addition of Li(2,5-Me[subscript 2]C[subscript 4]H[subscript 2]N) to 4 yielded yellow W(O)(CH-t-Bu)(OHMT)(Me[subscript 2]Pyr)(PMe[subscript 2]Ph) (5). Compound 5 is a highly effective catalyst for the Z-selective coupling of selected terminal olefins (at 0.2% loading) to give product in >75% yield with >99% Z configuration. Addition of 2 equiv of B(C[subscript 6]F[subscript 5])[subscript 3] to 5 afforded a catalyst activated at the oxo ligand by B(C[subscript 6]F[subscript 5])[subscript 3]. 5·B(C[subscript 6]F[subscript 5])[subscript 3] is a highly active catalyst that produces thermodynamic products (~20% Z).
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机译：LiOHMT（OHMT = O-2,6-dimesitylphenoxide）加入W（O）（CH-t-Bu）（PMe [下标2] Ph）[下标2] Cl [下标2]导致WO（CH-t -Bu）Cl（OHMT）（PMe [下标2] Ph）（4）。随后将Li（2,5-Me [下标2] C [下标4] H [下标2] N）添加到4中得到黄色的W（O）（CH-t-Bu）（OHMT）（Me [下标2]吡咯）（PMe [下标2] Ph）（5）。化合物5是一种高效的催化剂，用于所选末端烯烃的Z选择性偶联（负载量为0.2％），以> 75％的收率和> 99％的Z构型提供产物。将2当量的B（C [下标6] F [下标5]）[下标3]加成，得到由B（C [下标6] F [下标5]）[下标3]在氧代配体上活化的催化剂。 。 5·B（C [下标6] F [下标5]）[下标3]是一种高活性催化剂，可产生热力学产物（约20％Z）。
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