Cross-dehydrocoupling: A Novel Synthetic Route to P–B–P–B Chains
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https://figshare.com/articles/dataset/Cross_dehydrocoupling_A_Novel_Synthetic_Route_to_P_B_P_B_Chains/2263201
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资源简介：
Transition-metal-catalyzed
dehydrocoupling of tert-butylferrocenylphosphine–borane
(2) with [{Rh(μ-Cl)(1,5-cod)}2] (cod
= cyclooctadiene) as the catalyst gave the homocoupled product [Fc(tBu)(H)P(BH2)P(Fc)(tBu)(BH2X)] [3; Fc = Fe(C5H5)(C5H4), X = H/Cl], while cross-dehydrocoupling with
the tertiary phosphine–boranes P(tBu)(nBu)2(BH3) (2a) and PPh(nBu)2(BH3) (2b) using
[Rh(1,5-cod)2]OTf (OTf = trifluoromethanesulfonate) gave
the first cross-dehydrocoupled products reported to date, [Fc(tBu)(BH3)P(BH2)P(tBu)(nBu)2] (4) and [Fc(tBu)(BH3)P(BH2)PPh(nBu)2] (5), in moderate yields. Compounds 2–5 were characterized by NMR spectroscopy
(1H, 13C, 31P, and 11B),
IR spectroscopy, mass spectrometry, and single-crystal X-ray structure
determination.
创建时间：
2016-02-17
