Results 21 to 30 of about 1,705 (200)

Cp∗Rh/Ag catalyzed C–H activation/cyclization sequences of NH-sulfoximines to fused aza-polyheterocycles under gentle conditions

Green Synthesis and Catalysis, 2023
Disclosed herein is a novel Rh/Ag co-catalyzed SNH directed C–H activation and C–H/N–H bond functionalization protocol of free NH-sulfoximines with hypervalent iodonium ylides.
Jiapian Huang, Fei Liu, Feihua Du, Linghui Zeng, Zhiyuan Chen   +4 more
doaj   +1 more source

Fungicide and insecticide exposure adversely impacts bumblebees and pollination services under semi-field conditions

Environment International, 2021
Sulfoximines, the next generation systemic insecticides developed to replace neonicotinoids, have been shown to negatively impact pollinator development and reproduction.
Giovanni Tamburini, Maria-Helena Pereira-Peixoto, Jonas Borth, Simon Lotz, Dimitry Wintermantel, Matthew J. Allan, Robin Dean, Janine Melanie Schwarz, Anina Knauer, Matthias Albrecht, Alexandra‑Maria Klein   +10 more
doaj   +1 more source

Palladium-catalyzed N-H functionalizations of sulfoximines

, 2022
N–H functionalizations of sulfoximines has been an important kind of reaction of NH-sufxomines. The Prof bolm's group has been devoted to this field. In this thesis, two kinds of Pd-catalyzed N–H functionalizations of sulfoximines were reported.
Ma, Ding
core   +1 more source

Green One-Pot Syntheses of 2-Sulfoximidoyl-3,6-dibromo Indoles Using N-Br Sulfoximines as Both Brominating and Sulfoximinating Reagents

Molecules, 2023
A green one-pot 2,3,6-trifunctionalization of N-alkyl/aryl indoles was achieved by adding three equivalents of N-Br sulfoximine to the indole solution.
Xiao Yun Chen, Yaonan Tang, Xinran Xiang, Yisong Tang, Mingyang Huang, Shaojun Zheng, Cuifeng Yang   +6 more
doaj   +1 more source

Base-mediated defluorinative alkylations of NH/N-acyl sulfoximines and conversions of N-methyl S, S-diaryl sulfoximines by S=N/S–C bond cleavage reactions

, 2023
Sulfoximines has attached significant attention from pharmaceutical and agrochemical industries. Broadening the variety of sulfoximines is crucial to afford active reagents for future medication research.
Wang, Xianliang
core   +1 more source

α-Functionalisation of Cyclic Sulfoximines via Lithiation-Trapping [PDF]

, 2018
This thesis describes the development of a general synthetic approach for the diastereoselective synthesis of a wide range of α-functionalised sulfoximines via lithiation-trapping reactions.
Hartley, Giordaina
core   +6 more sources

Sulfoximine Assisted C–H Activation and Annulation via Vinylene Transfer: Access to Unsubstituted Benzothiazines

Molecules, 2023
In this study, we report the synthesis of unsubstituted 1,2-benzothiazines through a redox-neutral Rh(III)-catalyzed C–H activation and [4+2]-annulation of S–aryl sulfoximines with vinylene carbonate.
Koneti Kondalarao, Somratan Sau, Akhila K. Sahoo   +2 more
doaj   +1 more source

(R)-(−)-2-[(5-Oxido-5-phenyl-5λ4-isoquino[4,3-c][2,1]benzothiazin-12-yl)amino]benzonitrile

Molbank, 2014
Copper-catalyzed cross-coupling between (S)-S-methyl-S-phenylsulfoximine (1) and 2-iodobenzonitrile (2) resulted in the discovery of an unprecedented one-pot triple arylation sequence to give (R)-(−)-2-[(5-oxido-5-phenyl-5λ4-isoquino[4,3-c][2,1 ...
Marcus Frings, Iuliana Atodiresei, Carsten Bolm   +2 more
doaj   +1 more source

The use of chiral lithium amides in the desymmetrisation of N-trialkylsilyl dimethyl sulfoximines

Beilstein Journal of Organic Chemistry, 2007
BackgroundChiral base desymmetrisation of dimethyl sulfoximines could provide a general route to chiral, enantioenriched dialkyl sulfoximines with potential for use in asymmetric catalysis.ResultsAsymmetric deprotonation of N-trialkylsilyl dimethyl ...
Matthew J. McGrath, Carsten Bolm
doaj   +1 more source

Diastereoselective α- and β-Functionalisation of Cyclic Sulfoximines

, 2022
In this thesis, the diastereoselective α- and β-functionalisation of cyclic sulfoximines via lithiation-trapping and various cross-coupling reactions is described.
Hartley, Giordaina
core   +4 more sources