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2 article(s) from Liu, Junzhi

Synthesis of N-doped chiral macrocycles by regioselective palladium-catalyzed arylation

Shuhai Qiu and
Junzhi Liu

Beilstein J. Org. Chem. 2025, 21, 1917–1923, doi:10.3762/bjoc.21.149

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Figure 1: (a) Representatives of inherent chiral calix[4]arenes. (b) Molecular skeletons of inherent chiral N...

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Scheme 1: Synthesis of N-doped macrocycles MC1, MC2, and MC3. Reaction conditions: a) Pd₂(dba)₃, Pt-Bu₃·HBF₄,...

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Figure 2: Crystal structures of compounds (a) 3a, (b) MC2, and (c) MC3. (d) Molecular arrangements of MC3. Hy...

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Figure 3: (a) Absorptions and (b) emissions of compounds 3a, 3b, MC1, MC2, and MC3 measured in dichloromethan...

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Figure 4: Calculated frontier molecular orbitals and relative energy levels of MC1 (left), MC2 (middle), and ...

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Figure 5: (a) CD spectra, (b) |g_abs|, and (c) g_lum values of enantiomers of MC1 measured in dichloromethane a...

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Full Research Paper

Published 15 Sep 2025

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One-pot synthesis of dicyclopenta-fused peropyrene via a fourfold alkyne annulation

Ji Ma,
Yubin Fu,
Junzhi Liu and
Xinliang Feng

Beilstein J. Org. Chem. 2020, 16, 791–797, doi:10.3762/bjoc.16.72

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Scheme 1: Chemical structures of dicyclopenta-fused pyrene derivatives i–iii, peropyrene and the dicyclopenta...

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Scheme 2: Synthetic route towards compound 1. a) B₂pin₂, dtbpy, [Ir(OMe)cod]₂, cyclohexane, 70 °C, 20 h, 67%;...

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Figure 1: High-resolution MALDI-TOF mass spectrum of 1. Inset: isotopic distribution compared to mass spectru...

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Figure 2: Single-crystal X-ray structure of 1. (a) Top view and (b) side view of the (P,P) isomer. c) Crystal...

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Figure 3: (a) UV–vis absorption spectra of precursor 5 and 1 in CH₂Cl₂ solution (10⁻⁵ M). Inset: photograph o...

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Figure 4: Molecular orbitals of peropyrene derivative 6 and the dicyclopenta-fused peropyrene 1.

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Letter

Published 20 Apr 2020

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