Category: 1293990-73-4

Shi, Zhuangzhi published the artcileRh(III)-Catalyzed intramolecular redox-neutral cyclization of alkenes via C-H activation, Safety of O-Pivaloylhydroxylamine trifluoromethanesulfonate, the publication is Chemical Communications (Cambridge, United Kingdom) (2014), 50(20), 2650-2652, database is CAplus and MEDLINE.

Biol. interesting fused oligocyclic lactams were prepared via an intramol. redox-neutral cyclization process. By the proper choice of the substrates with a wide variety of tethered olefins, the less favored C-H bond can be activated and functionalized. This C-H activation proceeds under mild conditions, obviates the need for external oxidants, and displays a broad scope with respect to the substituents.

Chemical Communications (Cambridge, United Kingdom) published new progress about 1293990-73-4. 1293990-73-4 belongs to catalysis-chemistry, auxiliary class Aliphatic Chain, name is O-Pivaloylhydroxylamine trifluoromethanesulfonate, and the molecular formula is C30H24BrCuN2P, Safety of O-Pivaloylhydroxylamine trifluoromethanesulfonate.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Tan, Jin-Fay published the artcileAlkynyl Triazenes as Fluoroalkyne Surrogates: Regioselective Access to 4-Fluoro-2-pyridones by a Rh(III)-Catalyzed C-H Activation-Lossen Rearrangement-Wallach Reaction, Synthetic Route of 1293990-73-4, the publication is ACS Catalysis (2020), 10(6), 3790-3796, database is CAplus.

A highly regioselective synthesis of 4-fluoro-2-pyridones using 1-alkynyl triazenes as a convenient fluoroalkyne surrogates was reported. The protocol comprises an alkenyl C-H annulation with 1-alkynyl triazenes followed by a treatment with HF·pyridine smoothly delivering a broad range of 4-fluoro-2-pyridones in a one-pot fashion in 90 min at 23-60 C. Notably, a rare Lossen rearrangement occurs during the C-H functionalization part of the transformation, allowing selective access to the less-available 4-fluoro-2-pyridone framework. Furthermore, the triazenyl intermediate was elaborated into addnl. fluorine-containing substituents like fluorinated alkoxy and trifluoromethyl groups.

ACS Catalysis published new progress about 1293990-73-4. 1293990-73-4 belongs to catalysis-chemistry, auxiliary class Aliphatic Chain, name is O-Pivaloylhydroxylamine trifluoromethanesulfonate, and the molecular formula is C12H10F2Si, Synthetic Route of 1293990-73-4.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Huckins, John R. published the artcileRh(III)-Catalyzed C-H Activation and Double Directing Group Strategy for the Regioselective Synthesis of Naphthyridinones, Synthetic Route of 1293990-73-4, the publication is Journal of the American Chemical Society (2013), 135(39), 14492-14495, database is CAplus and MEDLINE.

A general Rh-(III)-catalyzed synthesis of naphthyridinone derivatives is described. It relies on a double-activation and directing approach leveraging nicotinamide N-oxides as substrates. In general, high yields and selectivities can be achieved using low catalyst loadings and mild conditions (room temperature) in the couplings with alkynes, while alkenes require slightly more elevated temperatures

Journal of the American Chemical Society published new progress about 1293990-73-4. 1293990-73-4 belongs to catalysis-chemistry, auxiliary class Aliphatic Chain, name is O-Pivaloylhydroxylamine trifluoromethanesulfonate, and the molecular formula is C6H12F3NO5S, Synthetic Route of 1293990-73-4.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Liu, Hui published the artcileNanosheet-Enhanced Rhodium(III)-Catalysis in C-H Activation, Related Products of catalysis-chemistry, the publication is ACS Catalysis (2014), 4(10), 3543-3550, database is CAplus.

Rhodium(III)-catalyzed C-H activation has been promoted impressively with layered double hydroxide (LDH)-bound ligand nanosheets. A yield of >99% and a regioisomeric ratio of >20:1 have been produced in the coupling of alkenes with N-(pivaloyloxy)benzamide [e.g., N-(pivaloyloxy)benzamide + Me acrylate â†?I]. The nanosheets have been revealed to enhance the catalytic activity by affording the desired basicity and improve the regioselectivity by serving as the rigid substitution of α-amino acid ligands.

ACS Catalysis published new progress about 1293990-73-4. 1293990-73-4 belongs to catalysis-chemistry, auxiliary class Aliphatic Chain, name is O-Pivaloylhydroxylamine trifluoromethanesulfonate, and the molecular formula is C6H12F3NO5S, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia