Applied Organometallic Chemistry, Год журнала: 2022, Номер 36(9)
Опубликована: Июнь 22, 2022
A Cu‐catalyzed straightforward synthesis of 1‐naphthols via an 6‐endo‐dig cyclization terminal alkynes with 2‐bromoaryl ketones in water is reported. The Cu(I) catalytic system tolerates various electron‐withdrawing and electron‐donating functional groups on both substrates exhibits unique selectivity to give moderate good yields.
Язык: Английский
Chemical Communications, Год журнала: 2023, Номер 59(25), С. 3775 - 3778
Опубликована: Янв. 1, 2023
An efficient method for the construction of various 3,4,5-trisubstituted phenol derivatives has been achieved via Rh(III)-catalyzed coupling phosphonium cations with internal alkynes. This protocol shows good substrate compatibility, as an array structurally and electronically diverse compounds react efficiently up to 87% yield.
Язык: Английский
Процитировано
7
The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(9), С. 6016 - 6026
Опубликована: Апрель 16, 2024
We report ruthenium(II)-catalyzed sequential C–H/N–H alkenylation cascade of phenanthroimidazole and alkenes to form novel phenanthroimidazoisoindol acrylates via dual C–H activation aza-Michael reaction. The two nitrogen atoms the imidazole ring act as directing groups for regioselective ortho activation. These polycyclic N-heterocycles were evaluated their photophysical properties.
Язык: Английский
Процитировано
2
Organic Chemistry Frontiers, Год журнала: 2023, Номер 10(16), С. 4038 - 4042
Опубликована: Янв. 1, 2023
A ruthenium-catalyzed Dolye–Kirmse rearrangement reaction of sulfoxonium ylides to afford sulfide- or selenide-containing compounds has been developed.
Язык: Английский
Процитировано
6
The Journal of Organic Chemistry, Год журнала: 2024, Номер unknown
Опубликована: Дек. 19, 2024
An efficient method for construction of various fluorenones has been achieved via Rh(III)-catalyzed C–H activation/[4 + 2] annulation/aromatization sequences simple and readily available enaminones 1,3-dienes. This protocol showed good substrate compatibility as an array structurally electronically diverse prepared efficiently in moderate to yields preparative scale utility showing very efficiency the late-stage functionalization complex valuable molecules.
Язык: Английский
Процитировано
1
The Journal of Organic Chemistry, Год журнала: 2022, Номер 87(19), С. 12608 - 12621
Опубликована: Сен. 9, 2022
An external oxidant free Ru(II)-catalyzed C–H functionalization/annulation of primary benzylamines with sulfoxonium ylides has been developed for the synthesis isoquinolines. The reaction utilizes amine as a directing group, which is generally considered to be poor group. This work presents first example Ru-catalyzed functionalization under redox-neutral conditions. detection amine-directed ruthenacyclic intermediate using high-resolution mass spectrometry corroborated involvement
Язык: Английский
Процитировано
6
Asian Journal of Organic Chemistry, Год журнала: 2022, Номер 11(8)
Опубликована: Июль 6, 2022
Abstract A ruthenium‐catalyzed cascade C−H functionalization/intramolecular annulation of N ‐phenylindazoles with sulfoxonium ylides was developed for the synthesis indazolo[1,2‐ a ]cinnolinones. This transformation features C−H/N−H functionalization in one pot , utilization cost‐effective ruthenium catalyst, wide substrate scope and good functional group tolerance. Moreover, reaction 2‐arylphthalazine‐1,4‐diones led to phthalazino[2,3‐ ]cinnolindiones under standard conditions.
Язык: Английский
Процитировано
5
Applied Organometallic Chemistry, Год журнала: 2023, Номер 37(4)
Опубликована: Фев. 14, 2023
The palladium‐catalyzed direct oxidative coupling reaction between 2‐aroylimidazoles with aromatic aldehydes or benzyl alcohols under oxidation conditions has been achieved to furnish a variety of carbonyl functionalized in moderate good yields. obtained products could be selectively transformed the corresponding phthalazines and phthalazin‐1(2 H )‐ones hydrazine hydrate as cyclization partner different temperature construct an array structurally diverse nitrogen‐containing heterocycles.
Язык: Английский
Процитировано
2
Tetrahedron Letters, Год журнала: 2023, Номер 122, С. 154495 - 154495
Опубликована: Апрель 9, 2023
Язык: Английский
Процитировано
1
Synthesis, Год журнала: 2023, Номер 56(01), С. 47 - 54
Опубликована: Ноя. 23, 2023
Abstract A phosphonium-assisted C–H cyclization with iodonium ylides has been developed under redox-neutral rhodium(III) catalysis, offering a wide variety of valuable isocoumarins in moderate to good yields. This transformation proceeds through activation, carbene insertion, and nucleophilic addition processes. The reaction occurs low catalyst loading short time does not require an oxidant.
Язык: Английский
Процитировано
1
Royal Society of Chemistry eBooks, Год журнала: 2024, Номер unknown, С. 58 - 108
Опубликована: Фев. 21, 2024
The present review collects and describes the literature on preparation, characterisation applications of phosphonium salts ylides, published between January December 2021. large number reviewed references highlights importance P-based derivatives in synthetic non-synthetic applications. For Reader’s convenience, topics are organized to offer an introductory survey methods preparation each type compound, followed by analysis applicative curiosity driven research. Recent advances synthesis phosphonium-based ionic liquids (PILs) summarised a dedicated section, highlighting, particular, ever-increasing extraction energy storage reported for these liquids.
Язык: Английский
Процитировано
0