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2 article(s) from Yu, Yang

Site-selective reactions mediated by molecular containers

Rui Wang and
Yang Yu

Beilstein J. Org. Chem. 2022, 18, 309–324, doi:10.3762/bjoc.18.35

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Figure 1: Site-selective Diels–Alder reaction of anthracene and phthalimide mediated by aqueous organopalladi...

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Figure 2: Site-selective Diels–Alder and [2 + 2]-photoaddition reactions between naphthalene and phthalimide ...

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Figure 3: Cage host A-mediated selective 1,4-radical addition of o-quinone 10.

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Figure 4: Cyclodextrin-mediated site-selective reductions.

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Figure 5: Selective reduction of an α,ω-diazide compound mediated by water-soluble cavitand D.

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Figure 6: Selective radical reduction of α,ω-dihalides mediated by water-soluble cavitands E and F.

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Figure 7: Site-selective hydrogenation of polyenols mediated by supramolecular encapsulated rhodium catalyst.

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Figure 8: Site-selective oxidation of steroids using cyclodextrin as the anchoring template.

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Figure 9: Site-selective oxidations of linear diterpenoids with the help of cage host A.

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Figure 10: Site-selective monoepoxidation of α,ω-dienes mediated by the water-soluble cavitand host E.

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Figure 11: Site-selective ring-opening reaction of epoxides mediated by cavitand I with an inwardly directed c...

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Figure 12: Site-selective nucleophilic substitution reaction of allylic chlorides mediated by cage host J.

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Figure 13: Site-selective monohydrolysis of α,ω-difunctional compounds using deep water-soluble cavitands.

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Published 14 Mar 2022

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Bromide-assisted chemoselective Heck reaction of 3-bromoindazoles under high-speed ball-milling conditions: synthesis of axitinib

Jingbo Yu,
Zikun Hong,
Xinjie Yang,
Yu Jiang,
Zhijiang Jiang and
Weike Su

Beilstein J. Org. Chem. 2018, 14, 786–795, doi:10.3762/bjoc.14.66

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Scheme 1: Representative pharmaceutically useful indazoles.

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Scheme 2: Model Heck reaction of 3-bromo-N-methyl-1H-indazole (1a) and n-butyl acrylate (2a). (173 stainless-...

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Figure 1: Investigation of additives in the Heck reaction: 1a (1.5 mmol), 2a (2.25 mmol), Pd(OAc)₂ (5 mol %),...

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Scheme 3: The control experiments. ^aTEA (1.8 mmol), silica gel (5.0 g), ^bPd(OAc)₂ (5 mol %), PPh₃ (10 mol %),...

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Scheme 4: Plausible reaction pathway.

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Figure 2: Influence of milling time and rotation speed on the Heck reaction: 1a (1.5 mmol), 2a (2.25 mmol), P...

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Figure 3: Influence of the milling ball filling degree with different size on the Heck reaction: 1a (1.5 mmol...

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Scheme 5: Examination of the substrate scope. Reaction conditions: 1 (1.5 mmol), 2 (2.25 mmol), Pd(OAc)₂ (5 m...

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Scheme 6: Synthesis of axitinib by mechanochemical Heck–Migita coupling. Reagents and conditions: (i) NBS, Na...

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Published 06 Apr 2018

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