Radical-triggered base-free 1,3-C → C migrations: chemodivergent synthesis of cyclic imines from N-allyl enamines DOI

Baihui Zheng,

Junsheng Zhi,

Nan Wang

и другие.

Organic Chemistry Frontiers, Год журнала: 2023, Номер 11(2), С. 500 - 507

Опубликована: Дек. 19, 2023

Novel radical-triggered 1,3-C → C migrations of N -allyl enamines under base-free conditions and the catalyst-dependent synthesis cyclic imines were achieved.

Язык: Английский

Advances in photoinduced radical–polar crossover cyclization (RPCC) of bifunctional alkenes DOI
Meng Liu,

Xinke Ouyang,

C. Nguyen Xuan

и другие.

Organic Chemistry Frontiers, Год журнала: 2023, Номер 11(3), С. 895 - 915

Опубликована: Дек. 20, 2023

Photoinduced radical–polar crossover cyclization (RPCC) of bifunctional alkenes is high synthetic utility to produce cyclic products with precise alkene design. This review summarizes the recent representative advances in field RPC.

Язык: Английский

Процитировано

23

Photoinduced radical-polar crossover cyclization reactions DOI
Zhiming Zhu, Yongxin Zhang, Ziyang Li

и другие.

Chem Catalysis, Год журнала: 2024, Номер 4(5), С. 100945 - 100945

Опубликована: Март 5, 2024

Язык: Английский

Процитировано

13

Electrochemical Sulfonylation/Cyclization of N-Alkenylacrylamides with Sodium Sulfinates or Sulfonyl Hydrazides DOI
Zhixian Yang,

Lu-Cai Ding,

Gui-Hong Yang

и другие.

The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(15), С. 10660 - 10677

Опубликована: Июль 18, 2024

Two general protocols for the regioselective electrochemically enabled sulfonylation cyclization of

Язык: Английский

Процитировано

8

Visible‐Light‐Induced Domino Cyclization to Access Pyrido[2,3‐d]pyrimidine‐2,4‐diones via a Radical‐Polar Crossover Reaction DOI

Wanqing Zuo,

Yu Cheng, Zhizhen Zhu

и другие.

Chinese Journal of Chemistry, Год журнала: 2024, Номер 42(19), С. 2346 - 2350

Опубликована: Май 27, 2024

Comprehensive Summary Catalytic and green strategies for the synthesis of privileged scaffolds are synthetically appealing. We now report a radical‐polar crossover (RPC)‐enabled three‐component cyclization bromodifluoroalkyls with enaminones 6‐aminouraciles via visible‐light‐induced domino cyclization. The reaction exhibited broad substrate scope (> 40 examples) including complex molecules, which highlighted utility this strategy construction library bioactive analogs.

Язык: Английский

Процитировано

7

Azido-alkynylation of alkenes through radical-polar crossover DOI Creative Commons
Julien Borrel, Jérôme Waser

Chemical Science, Год журнала: 2023, Номер 14(35), С. 9452 - 9460

Опубликована: Янв. 1, 2023

We report an azido-alkynylation of alkenes allowing a straightforward access to homopropargylic azides by combining hypervalent iodine reagents and alkynyl-trifluoroborate salts. The design photocatalytic redox-neutral radical polar crossover process was key develop this transformation. A variety possessing electron-rich -poor aryls, heterocycles or ether substituents could be accessed in 34-84% yield. products are synthetically useful building blocks that easily transformed into pyrroles bioactive amines.

Язык: Английский

Процитировано

12

Photocatalyzed Azidofunctionalization of Alkenes via Radical‐Polar Crossover DOI Open Access
Pierre Palamini, Alexandre A. Schoepfer, Jérôme Waser

и другие.

Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

The azidofunctionalization of alkenes under mild conditions using commercially available starting materials and easily accessible reagents is reported based on a radical-polar crossover strategy. A broad range alkenes, including vinyl arenes, enamides, enol ethers, sulfides, dehydroamino esters, were regioselectively functionalized with an azide nucleophiles such as azoles, carboxylic acids, alcohols, phosphoric oximes, phenols. method led to more efficient synthesis 1,2-azidofunctionalized pharmaceutical intermediates when compared previous approaches, resulting in both reduction step count increase overall yield. scope limitations these transformations further investigated through standard unbiased selection 15 substrate combinations out 1,175,658 possible clustering technique.

Язык: Английский

Процитировано

0

Photocatalyzed Azidofunctionalization of Alkenes via Radical‐Polar Crossover DOI Open Access
Pierre Palamini, Alexandre A. Schoepfer, Jérôme Waser

и другие.

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Abstract The azidofunctionalization of alkenes under mild conditions using commercially available starting materials and easily accessible reagents is reported based on a radical‐polar crossover strategy. A broad range alkenes, including vinyl arenes, enamides, enol ethers, sulfides, dehydroamino esters, were regioselectively functionalized with an azide nucleophiles such as azoles, carboxylic acids, alcohols, phosphoric oximes, phenols. method led to more efficient synthesis 1,2‐azidofunctionalized pharmaceutical intermediates when compared previous approaches, resulting in both reduction step count increase overall yield. scope limitations these transformations further investigated through standard unbiased selection 15 substrate combinations out 1,175,658 possible clustering technique.

Язык: Английский

Процитировано

0

Alkylazolation of Alkenes via Photocatalytic Radical Polar Crossover DOI

Tiancen Bian,

Zuxiao Zhang

Organic Letters, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

We present a photocatalytic method for alkylamination of alkenes, enabling efficient C-C and C-N bond formation to construct aza-heterocycles valuable in drug discovery. Using radical-polar crossover pathway, electron-deficient alkenes are reduced electrophilic radicals, which react with electron-rich form nucleophilic radicals. Oxidation these intermediates yields carbocations, trapped by aza-heteroarenes afford alkylaminated products. This strategy enhances molecular complexity while suppressing side reactions.

Язык: Английский

Процитировано

0

Transition metal catalysed cascade C–C and C–O bond forming events of alkynes DOI

Padmanava Barik,

Subhra Sriharsa Behera,

Laxmi Kanta Nayak

и другие.

Organic & Biomolecular Chemistry, Год журнала: 2024, Номер 22(25), С. 5052 - 5086

Опубликована: Янв. 1, 2024

1,2/1,1-Difunctionalization of alkynes (cascade C–C and C–O bond formations) serves as one the reliable methods for synthesis numerous chemical architectures.

Язык: Английский

Процитировано

3

Synthesis of constrained bicycloalkanes through bibase-promoted brook rearrangement/radical-polar crossover cyclization DOI Creative Commons

Xinke Ouyang,

Bingyao Shi,

Yuanyuan Zhao

и другие.

Chemical Science, Год журнала: 2024, Номер 15(28), С. 11092 - 11098

Опубликована: Янв. 1, 2024

A concise protocol for the synthesis of constrained bicycloalkanes has been developed, using easily obtainable α-silyl alcohols and alkenes through a bibase-promoted brook rearrangement/radical-polar crossover cyclization (RPCC) process.

Язык: Английский

Процитировано

3