Reactions of Modified Intermolecular Frustrated P/B Lewis Pairs with Dihydrogen, Ethene, and Carbon Dioxide
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https://figshare.com/articles/dataset/Reactions_of_Modified_Intermolecular_Frustrated_P_B_Lewis_Pairs_with_Dihydrogen_Ethene_and_Carbon_Dioxide/2532979
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资源简介：
In this contribution, we discuss the reactivity of different
phosphanes
(XPhos (1a), tBuXPhos (1b), and Mes2PEt (1c)) and tris(pentafluorophenyl)borane
(and in one case, EtB(C6F5)2) against
small molecules. 1a/B(C6F5)3, 1b/B(C6F5)3, and 1c/B(C6F5)3 split
dihydrogen heterolytically to yield the phosphonium borate salts 2a, 2b, and 2c, respectively. Control
experiments with D2 gave the respective deuterated phosphonium
borates 2a-D2, 2b-D2, and 2c-D2. The FLP systems 1b/B(C6F5)3 and 1c/B(C6F5)3 underwent 1,2-addition reactions
with ethene, resulting in the generation of the ethylene-bridged phosphonium
borates 3b and 3c. As well, the Lewis pair
EtB(C6F5)2 and Mes2PEt
reacted with ethene to yield the corresponding 1,2-addition product 3d. At low temperature, the FLP systems 1a/B(C6F5)3 and 1c/B(C6F5)3 coordinated carbon dioxide (4a, 4c). The new compounds 2a, 2b, 3b, 3c, 3d, 4a, and 4c were characterized by X-ray crystal structure
analyses.
创建时间：
2012-04-09
