2 article(s) from Herrmann, Rudolf
Synthesis of 3-oxo-camphorsulfonylimine (3) [13,15] and its bis-alkynyl derivatives 4 from camphor-10-sulf...
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Reactions of bis-alkynyl camphor derivative 4a with TiCl4 and with Br2, respectively.
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Reactions of bis-alkynylcamphor derivatives 4a–e with catalytic amounts of PtCl2(PhCN)2.
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Attempted selective synthesis of 3-alkynyl derivatives via sulfonylimine reduction of oxoimide 3.
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Selective synthesis of 2-alkynyl derivatives by protection of the 3-oxo group as an acetal.
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Selective synthesis of 2-alkynyl derivatives by protection of the 3-oxo group as an imine.
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Synthesis of the bis-alkynyl derivatives bearing different alkyne substituents and their platinum-c...
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Proposed mechanism of the platinum-catalysed cycloisomerisation.
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Beilstein J. Org. Chem. 2017, 13, 1230–1238, doi:10.3762/bjoc.13.122
Camphor and some camphor derivatives.
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Formation of 2 from reaction of oxoimine 1 with amino acids (H2NCH(R)COOH: R = H, CH3, CH2Ph, CH2CH...
ESI mass spectrum of 2 (positive ion mode).
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1H NMR spectrum of 2 in CD3CN at T = −20 °C.
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13C NMR spectrum of 2 in CD3CN at T = −20 °C.
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Optimized structure of 2 ((S)-3A isomer) with labeling scheme.
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NOESY spectrum (detail) showing the cross peak between H3A and H10A (see Supporting Information File 1, Figure S6 for the full s...
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Upper row: anion 3 and zwitterion 4 which are stable upon geometry optimization. Middle row: zwitte...
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Intramolecular reactions of non-zwitterionic ground state 6g to 11 (top) or 8 (bottom). The activat...
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Transition-state geometry and salient bond distances along the IRC path for the reaction of 6g → 11...
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Transition-state geometry and salient bond distances along the IRC path for the reaction of 6g → 8....
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Potential products 7–11 of the Strecker degradation together with the reaction of compound 10 to gi...
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ESI(+) tandem mass spectrum of the intermediate 12 (m/z 229) and proposed fragment ions.
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Beilstein J. Org. Chem. 2016, 12, 732–744, doi:10.3762/bjoc.12.73
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