Search Results - "Pahl, Jürgen"

Borylation Directed Borylation of Indoles Using Pyrazabole Electrophiles: A One‐Pot Route to C7‐Borylated‐Indolines by Pahl, Jürgen, Noone, Emily, Uzelac, Marina, Yuan, Kang, Ingleson, Michael J.

“…Pyrazabole (1) is a readily accessible diboron compound that can be transformed into ditopic electrophiles. In 1 (and derivatives), the B⋅⋅⋅B separation is ca…”
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Cationic Magnesium π–Arene Complexes by Pahl, Jürgen, Friedrich, Alexander, Elsen, Holger, Harder, Sjoerd

“…Reaction of the trityl cation in [Ph3C+]­[B­(C6F5)4 –] with the n-butyl anion in (BDI)­MgnBu led to ß-hydride abstraction and formation of Ph3CH, 1-butene, and…”
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Stabilization of Calcium Hydride Complexes by Fine Tuning of Amidinate Ligands by Causero, Andrea, Ballmann, Gerd, Pahl, Jürgen, Zijlstra, Harmen, Färber, Christian, Harder, Sjoerd

“…A range of symmetric amidinate ligands RAmAr (R is backbone substituent, Ar is N substituent) have been investigated for their ability to stabilize calcium…”
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Syntheses of Heteroleptic Amidinate Strontium Complexes Using a Superbulky Ligand by Freitag, Benjamin, Pahl, Jürgen, Färber, Christian, Harder, Sjoerd

“…Strontium complexes are presented with two different bulky amidinate ligands (Am): tBuC­(N-DIPP)2 (DIPP = 2,6-diisopropylphenyl), abbreviated here as…”
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A Frustrated Lewis Pair Based on a Cationic Aluminum Complex and Triphenylphosphine by Stennett, Tom E, Pahl, Jürgen, Zijlstra, Harmen S, Seidel, Falk W, Harder, Sjoerd

“…The highly Lewis acidic, cationic aluminum species [DIPP-nacnacAlMe]+[B­(C6F5)4]− (1, DIPP-nacnac = [HC­{C­(Me)­N­(2,6- i Pr2C6H3)}2]−) has been shown to…”
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Synthesis of Electrophiles Derived from Dimeric Aminoboranes and Assessing Their Utility in the Borylation of π Nucleophiles by Millet, Clément R. P., Pahl, Jürgen, Noone, Emily, Yuan, Kang, Nichol, Gary S., Uzelac, Marina, Ingleson, Michael J.

“…Dimeric aminoboranes, [H2BNR2]2 (R = Me or CH2CH2) containing B2N2 cores, can be activated by I2, HNTf2 (NTf2 = [N­(SO2CF3)2]), or [Ph3C]­[B­(C6F5)4] to form…”
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Heteroleptic Heavier Alkaline Earth Metal Amide Complexes Stabilized by a Superbulky β‑Diketiminate Ligand by Gentner, Thomas Xaver, Rösch, Bastian, Thum, Katharina, Langer, Jens, Ballmann, Gerd, Pahl, Jürgen, Donaubauer, Wolfgang A, Hampel, Frank, Harder, Sjoerd

“…Heteroleptic alkaline earth metal (Ae = Ca, Sr, Ba) amide complexes with the superbulky β-diketiminate ligand DIPePBDI (CH­[C­(Me)­N-DIPeP]2, DIPeP =…”
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s‑Block Metal Dibenzoazepinate Complexes: Evidence for Mg–Alkene Encapsulation by Freitag, Benjamin, Elsen, Holger, Pahl, Jürgen, Ballmann, Gerd, Herrera, Alberto, Dorta, Romano, Harder, Sjoerd

“…The dibenzo­[b,f]­azepinate (DBAP) complexes (DBAP)­Li·(THF)3, (DBAP)2Mg·(THF)2, and (DBAP)2Ca·(THF)3 could be isolated as highly air-sensitive compounds in…”
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Lithiation of N‑Heterocyclic Olefins by Gentner, Thomas Xaver, Ballmann, Gerd, Pahl, Jürgen, Elsen, Holger, Harder, Sjoerd

“…Deprotonation of 1,3-dimethyl-2-methyleneimidazole (MeNHO) by nBuLi in hexane/benzene is fast and clean and gave a precipitate of the product in which the…”
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Borylation Directed Borylation of Indoles Using Pyrazabole Electrophiles: A One‐Pot Route to C7‐Borylated‐Indolines by Pahl, Jürgen, Noone, Emily, Uzelac, Marina, Yuan, Kang, Ingleson, Michael J.

“…Pyrazabole (1) is a readily accessible diboron compound that can be transformed into ditopic electrophiles. In 1 (and derivatives), the B⋅⋅⋅B separation is ca…”
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Calcium Hydride Catalyzed Highly 1,2-Selective Pyridine Hydrosilylation by Intemann, Julia, Bauer, Heiko, Pahl, Jürgen, Maron, Laurent, Harder, Sjoerd

“…Reaction of the calcium hydride complex (DIPPnacnac‐CaH⋅THF)2 with pyridine is much faster and selective than that of the corresponding magnesium hydride…”
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Cationic Aluminium Complexes as Catalysts for Imine Hydrogenation by Friedrich, Alexander, Eyselein, Jonathan, Elsen, Holger, Langer, Jens, Pahl, Jürgen, Wiesinger, Michael, Harder, Sjoerd

“…Strongly Lewis acidic cationic aluminium complexes, stabilized by β–diketiminate (BDI) ligands and free of Lewis bases, have been prepared as their B(C6F5)4−…”
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A Simple Route to Calcium and Strontium Hydride Clusters by Maitland, Brant, Wiesinger, Michael, Langer, Jens, Ballmann, Gerd, Pahl, Jürgen, Elsen, Holger, Färber, Christian, Harder, Sjoerd

“…The first strontium hydride complex has been obtained by simply treating Sr[N(SiMe3)2]2 with PhSiH3 in the presence of PMDTA. The Sr complex…”
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Calcium Hydride Reactivity: Formation of an Anionic N‐Heterocyclic Olefin Ligand by Causero, Andrea, Elsen, Holger, Pahl, Jürgen, Harder, Sjoerd

“…An anionic N‐heterocyclic olefin ligand was serendipitously obtained by reaction of an amidinate calcium hydride complex with 1,3‐dimethyl‐2‐methyleneimidazole…”
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Frustrated Lewis Pair Chemistry with Magnesium Lewis Acids by Brand, Steffen, Pahl, Jürgen, Elsen, Holger, Harder, Sjoerd

“…Anilido imine–magnesium bromide complexes, (LHMgBr)2 and (LMeMgBr)2, have been prepared [LH = DIPP‐N(C6H4)C(H)N‐DIPP and LMe = DIPP‐N(C6H4)C(Me)N‐DIPP (DIPP =…”
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Imine hydrogenation with simple alkaline earth metal catalysts by Bauer, Heiko, Alonso, Mercedes, Färber, Christian, Elsen, Holger, Pahl, Jürgen, Causero, Andrea, Ballmann, Gerd, De Proft, Frank, Harder, Sjoerd

“…Hydrogenation of unsaturated bonds is dominated by transition metal catalysis. Compared with transition metals, the use of other metals is less explored,…”
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Self‐Assembly of Magnesium Hydride Clusters Driven by Chameleon‐Type Ligands by Langer, Jens, Maitland, Brant, Grams, Samuel, Ciucka, Alexandra, Pahl, Jürgen, Elsen, Holger, Harder, Sjoerd

“…While magnesium hydride complexes are generally stabilized by hard, bulky N‐donor ligands, softer ligands with a broad variety of coordination modes are shown…”
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A Soft Grip: Magnesium Complexes with a Phosphine-Modified Phosphonium Diylidic Lewis Base by Langer, Jens, Kosygin, Irina, Puchta, Ralph, Pahl, Jürgen, Harder, Sjoerd

“…Simple strategies to obtain magnesium complexes with the soft chelating diylidic ligand [Ph2PCHPPh2(fluorenylidene)]− (dppmflu−) were developed to evaluate the…”
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Strontium Chemistry with Silicone Grease by Harder, Sjoerd, Freitag, Benjamin, Stegner, Philipp, Pahl, Jürgen, Naglav, Dominik

“…Reaction of Sr(2‐Me2N‐α‐Me3Si‐benzyl)2·(THF)2 with one equivalent of DIPP(H)N–BH–N(H)DIPP (NBN–H2, DIPP = 2,6‐iPr‐phenyl) gave the strontium bora‐amidinate…”
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Ligand Effects in Calcium Catalyzed Ketone Hydroboration by Brand, Steffen, Causero, Andrea, Elsen, Holger, Pahl, Jürgen, Langer, Jens, Harder, Sjoerd

“…The first “naked” (Lewis base‐free) cationic Ca amidinate complex [tBuAmDIPPCa(C6H6)]+[B(C6F5)4]– was prepared in 62 % yield {tBuAmDIPP = tBuC(N–DIPP)2; DIPP =…”
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