A Chemistry for Incorporation of Selenium into DNA‐Encoded Libraries DOI
Hongtao Xu,

Yuang Gu,

Shuning Zhang

et al.

Angewandte Chemie, Journal Year: 2020, Volume and Issue: 132(32), P. 13375 - 13382

Published: April 13, 2020

Abstract Conventional direct C−H selenylation suffers from simple selenation with limited atom economy and complicated reaction system. In this work, we designed benzoselenazolone as a novel bifunctional selenide reagent for both off‐ on‐DNA under rhodium(III) catalysis. We show that using allowed production of series products containing an adjacent aminoacyl group in fast efficient way, high economy. The synthetic application method was demonstrated by taking advantage the amide functionality nucleophile, directing group, coupling partner. This work shows great potential facilitating rapid construction selenium‐containing DNA‐encoded chemical libraries (SeDELs), lays foundation development drugs.

Language: Английский

Aminoselenation and Dehydroaromatization of Cyclohexanones with Anilines and Diselenides DOI
Lin Zhao,

Yujie Weng,

Xinyu Zhou

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: 26(22), P. 4835 - 4839

Published: May 29, 2024

A three-component cascade reaction involving cyclohexanones, anilines, and diaryl diselenides under metal-free conditions is reported. The ortho-selenation of cyclohexanones with diselenides, followed by sequential dehydroaromatization enables the preparation a variety o-selanyl anilines in moderate to excellent yields. This innovative transformation notable for its tolerance functional groups suitable late-stage modification complex pharmaceuticals.

Language: Английский

Citations

21

Chelation-assisted transition metal-catalysed C–H chalcogenylations DOI Open Access
Wenbo Ma, Nikolaos Kaplaneris,

Xinyue Fang

et al.

Organic Chemistry Frontiers, Journal Year: 2020, Volume and Issue: 7(8), P. 1022 - 1060

Published: Jan. 1, 2020

This review summarizes recent advances in C–S and C–Se formationsviatransition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.

Language: Английский

Citations

80

Rh(III)-Catalyzed Atroposelective C–H Selenylation of 1-Aryl Isoquinolines DOI

Dong‐Song Zheng,

Pei‐Pei Xie,

Fangnuo Zhao

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(8), P. 6009 - 6015

Published: April 5, 2024

Rhodium(III)-catalyzed atroposelective C–H selenylation of 1-aryl isoquinolines has been achieved. The direct reaction between and 2-(phenylselanyl)isoindoline-1,3-dione in the presence chiral SCpRh(III) complex afforded a series axially isoquinoline selenides up to 95% yield 96% ee. features mild conditions broad substrate scope. DFT calculations revealed that C–Se bond formation step proceeds through formal SN2 pathway.

Language: Английский

Citations

12

A Chemistry for Incorporation of Selenium into DNA‐Encoded Libraries DOI
Hongtao Xu,

Yuang Gu,

Shuning Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 59(32), P. 13273 - 13280

Published: April 13, 2020

Abstract Conventional direct C−H selenylation suffers from simple selenation with limited atom economy and complicated reaction system. In this work, we designed benzoselenazolone as a novel bifunctional selenide reagent for both off‐ on‐DNA under rhodium(III) catalysis. We show that using allowed production of series products containing an adjacent aminoacyl group in fast efficient way, high economy. The synthetic application method was demonstrated by taking advantage the amide functionality nucleophile, directing group, coupling partner. This work shows great potential facilitating rapid construction selenium‐containing DNA‐encoded chemical libraries (SeDELs), lays foundation development drugs.

Language: Английский

Citations

64

Palladium-Catalyzed Direct Ortho-C–H Selenylation of Benzaldehydes Using Benzidine as a Transient Directing Group DOI

Huihao Qiao,

Bing Sun, Qinqin Yu

et al.

Organic Letters, Journal Year: 2019, Volume and Issue: 21(17), P. 6914 - 6918

Published: Aug. 26, 2019

Benzidine was found to be a novel transient directing group enable Pd-catalyzed direct selenylation of inert C(sp2)–H bonds benzaldehydes. Diverse diarylselenides were readily constructed in high efficiency and satisfactory yields with good functional tolerance. The practical usage the method further demonstrated by enlarged reaction gram scale application facile access two selenoxanthenes one fluorescent probe.

Language: Английский

Citations

47

Diorganyl diselenides: a powerful tool for the construction of selenium containing scaffolds DOI
Amol D. Sonawane,

Rohini A. Sonawane,

Masayuki Ninomiya

et al.

Dalton Transactions, Journal Year: 2021, Volume and Issue: 50(37), P. 12764 - 12790

Published: Jan. 1, 2021

Organoselenium compounds find versatile applications in organic synthesis, materials and ligand chemistry.

Language: Английский

Citations

37

Highly Regioselective RhIII-Catalyzed Thiolation of N-Tosyl Acrylamides: General Access to (Z)-β-Alkenyl Sulfides DOI
Can Liu, Yi Fang, Shun‐Yi Wang

et al.

Organic Letters, Journal Year: 2018, Volume and Issue: 20(19), P. 6112 - 6116

Published: Sept. 26, 2018

A regioselective rhodium-catalyzed thiolation of N-tosyl acrylamides with readily available disulfides has been developed. Through N-tosylamide-assisted activation the alkenyl C(sp2)–H bond, a series (Z)-alkenyl sulfides were constructed in moderate to excellent yields good tolerance functional groups. Turnover numbers (TONs) up 7100 obtained utilizing 0.01 mol % RhIII catalyst. In addition, diphenyl diselenide was also successfully applied this reaction for construction (Z)-β-alkenyl selenides under identical conditions.

Language: Английский

Citations

44

Transition metal catalysed direct selanylation of arenes and heteroarenes DOI
Daniel S. Rampon, Eduardo Q. Luz, David B. Lima

et al.

Dalton Transactions, Journal Year: 2019, Volume and Issue: 48(27), P. 9851 - 9905

Published: Jan. 1, 2019

Recent outstanding advances in the C–Se bond formation through transition metalcatalysed direct selanylation, providing new insights into their mechanistic aspects, were provided this perspective.

Language: Английский

Citations

38

Ruthenium‐Catalyzed C–H Selenylations of Benzamides DOI
Wenbo Ma,

Zhengyun Weng,

Xinyue Fang

et al.

European Journal of Organic Chemistry, Journal Year: 2018, Volume and Issue: 2019(1), P. 41 - 45

Published: Oct. 17, 2018

A convenient and effective protocol for the ruthenium‐catalyzed C–H selenylations of benzamide was achieved under mild reaction conditions. The robust ruthenium catalyst tolerated a wide range functional groups set stage preparation diversely decorated benzamides. amide directing group could be transferred to carboxylic acid, aldehyde tetrazoles. Preliminary mechanistic study indicated base‐assisted electrophilic‐type substitution activation event.

Language: Английский

Citations

37

Palladium(II)/Copper(II)‐Catalyzed C–H Sulfidation or Selenation of Arenes Leading to Unsymmetrical Sulfides and Selenides DOI
Kota Nishino,

Shouya Tsukahara,

Yohei Ogiwara

et al.

European Journal of Organic Chemistry, Journal Year: 2019, Volume and Issue: 2019(7), P. 1588 - 1593

Published: Jan. 19, 2019

A novel palladium(II)/copper(II)‐catalyzed sulfidation of the C–H bond in electron‐rich arenes and pentafluorobenzene with disulfides was developed. This catalytic system can be used to efficiently produce various types either unsymmetrical aryl sulfides or alkyl sulfides. The present protocol could also applied direct preparation selenides via selenation.

Language: Английский

Citations

34