Late stage modifications of phosphine oxide ligands by iron‐catalyzed hydrogen borrowing reactions DOI Creative Commons
Jiajun Wu,

Subash Nethaji Narayanasamy,

Christophe Darcel

et al.

Journal of Organometallic Chemistry, Journal Year: 2022, Volume and Issue: 979, P. 122510 - 122510

Published: Sept. 5, 2022

Language: Английский

Rapid and Scalable Halosulfonylation of Strain‐Release Reagents** DOI Creative Commons
Helena D. Pickford, Vasyl Ripenko, Ryan E. McNamee

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(3)

Published: Oct. 13, 2022

Sulfonylated aromatics are commonplace motifs in drugs and agrochemicals. However, methods for the direct synthesis of sulfonylated non-classical arene bioisosteres, which could improve physicochemical properties drug agrochemical candidates, limited. Here we report a solution to this challenge: one-pot halosulfonylation [1.1.1]propellane, [3.1.1]propellane bicyclo[1.1.0]butanes that proceeds under practical, scalable mild conditions. The sulfonyl halides used chemistry feature aryl, heteroaryl alkyl substituents, conveniently generated situ from readily available sulfinate salts halogen atom sources. This methodology enables an array pharmaceutically agrochemically relevant halogen/sulfonyl-substituted bioisosteres cyclobutanes, on up multidecagram scale.

Language: Английский

Citations

64

Access to Phosphine-Containing Quinazolinones Enabled by Photo-Induced Radical Phosphorylation/Cyclization of Unactivated Alkenes DOI

Binsong Mu,

Le Zhang,

Guanghui Lv

et al.

The Journal of Organic Chemistry, Journal Year: 2022, Volume and Issue: 87(15), P. 10146 - 10157

Published: July 13, 2022

A mild and facile photo-induced cascade radical addition/cyclization of unactivated alkenes has been reported, through which a variety biologically valuable phosphine-containing quinazolinones could be obtained in moderate to good yields. The protocol was characterized by conditions, broad substrate scope, high atomic economy.

Language: Английский

Citations

29

Defluorophosphorylation of fluoroalkyl peroxides for the synthesis of highly substituted furans DOI
Xue‐Qiang Chu,

Song‐Zhou Cai,

Jiawei Chen

et al.

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(5), P. 2000 - 2010

Published: Jan. 1, 2023

A highly tunable defluorophosphorylation of fluorinated peroxides for the preparation C 3,4-diphosphoryl furans and 4-monophosphoryl under conditions with no added transition metals is disclosed.

Language: Английский

Citations

17

Visible-Light-Induced Highly Site-Selective Direct C–H Phosphorylation of Pyrrolo[2,3-d]pyrimidine Derivatives with H-Phosphine Oxides DOI
Zhuo Zhang, Mingrui Liu, Min Liu

et al.

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(5), P. 2996 - 3009

Published: Feb. 15, 2024

An efficient and highly regioselective C6-phosphorylation protocol for pyrrolo[2,3-d]pyrimidine (7-DAP) derivatives with various H-phosphine oxides induced by visible light at room temperature is described the first time. This has been successfully achieved combination of Na2-eosin Y as a photocatalyst LPO an oxidant under transition metal- additive-free conditions. The broad substrate scope, good functional group tolerance, excellent regioselectivity, air tolerant conditions make this process favorable modification scaffold enrich phosphorylated 7-DAP compounds further biological evaluation.

Language: Английский

Citations

7

Identification and Evaluation of Reversible Covalent Binders to Cys55 of Bfl-1 from a DNA-Encoded Chemical Library Screen DOI
Simon C. C. Lucas, J. Henry Blackwell,

Ulf Börjesson

et al.

ACS Medicinal Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(6), P. 791 - 797

Published: May 20, 2024

Bfl-1 is overexpressed in both hematological and solid tumors; therefore, inhibitors of are highly desirable. A DNA-encoded chemical library (DEL) screen against identified the first known reversible covalent small-molecule ligand for Bfl-1. The binding was validated through biophysical biochemical techniques, which confirmed mechanism action pointed to Cys55. This represented identification a cyano-acrylamide compound from DEL highlights further opportunities drug discovery screening. 10-fold improvement potency achieved systematic SAR exploration hit. more potent analogue

Language: Английский

Citations

4

Bicyclic Pyrrolidines for Medicinal Chemistry via [3 + 2]-Cycloaddition DOI

Vladimir I. Savych,

Vladimir L. Mykhalchuk, Pavlo V. Melnychuk

et al.

The Journal of Organic Chemistry, Journal Year: 2021, Volume and Issue: 86(19), P. 13289 - 13309

Published: Aug. 24, 2021

A general approach to bicyclic fused pyrrolidines via [3 + 2]-cycloaddition between nonstabilized azomethyne ylide and endocyclic electron-deficient alkenes was elaborated. "Push–pull" CF3-alkenes did not react with the under previously reported conditions, we developed a superior protocol (LiF, 140 °C, no solvent). Among obtained products were medchem-relevant sulfones, monofluoro-, difluoro-, trifluoromethyl-substituted pyrrolidines. This only allowed preparation of novel molecules but also significantly simplified synthesis existing ones (e.g., sofinicline).

Language: Английский

Citations

25

Alkyl Azetidines Via Batch and Flow Photochemistry DOI

Oleksandr Datsenko,

Andrii Baziievskyi,

Iryna V. Sadkova

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Alkyl azetidines have been prepared by photochemical modifications of azetidine-2-carboxylic acids in batch and flow. The reaction has realized milligram, gram, even multigram quantities. obtained are valuable building blocks for drug discovery.

Language: Английский

Citations

0

Multimetallic Pd- and Ni-catalyzed C(sp2)–P cross-coupling under aqueous micellar conditions DOI Creative Commons
Rafael Navrátil, Kristýna Kellovská, Ondřej Baszczyňski

et al.

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(23), P. 9779 - 9794

Published: Jan. 1, 2023

Multimetallic Pd/Ni and dual-ligand Pd catalysis enable C(sp 2 )–P cross-coupling reactions in aqueous micelles under mild conditions using inexpensive commercial materials catalysts while avoiding environmentally unsustainable organic solvents.

Language: Английский

Citations

7

Synthesis and Structural Elucidation of P-stereogenic Coumarins DOI Open Access
Kamil Dziuba, Sławomir Frynas, A.E. Kozioł

et al.

Symmetry, Journal Year: 2024, Volume and Issue: 16(1), P. 73 - 73

Published: Jan. 5, 2024

This paper presents the general synthesis of a comprehensive group P-chiral phosphinyl derivatives with natural coumarin-type motif. A chiral substituent was attached at third position coumarin molecule via Knoevenagel procedure using readily available phoshinylacetic acid esters without loss enantiomeric purity. The application salicylaldehyde-based allowed incorporation substituents different electron character into backbone these coumarins making them suitable for subsequent chemical modifications. As result, we gained access to six achiral (2a–g) and large number ((Sp)-4a–f, (Sp)-6a–e (Rp)-8a) new potential ligand precursors, pharmaceuticals, etc. an imbedded evidenced biological activity based on backbone. molecular structure, including absolute configuration, determined seven compounds.

Language: Английский

Citations

2

(Diazomethyl)dimethylphosphine Oxide – A Diazoalkane Reagent for [3+2] Cycloadditions DOI

Evgeniy Y. Slobodyanyuk,

Ilona Tarasiuk,

Taras Pasichnyk

et al.

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(23)

Published: Feb. 22, 2024

A safe and efficient method for the in-situ preparation of (diazomethyl)dimethylphosphine oxide - a hereto unexplored diazoalkane reagent is developed. The based on diazotization corresponding P(O)Me

Language: Английский

Citations

2