Results 21 to 30 of about 17,328 (234)
Molecules, 2022 The synthesis of new insecticidal gem-dimethyspiro-cyclopropanes derived from pyrrolidine-2,3-dione have been described, and their biological effect against different insect species has been evaluated.
Naoufel Ben Hamadi, Ahlem Guesmi
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Angewandte Chemie, EarlyView.A catalytic network embedding a formal rearrangement enables the first catalytic enantioselective multicomponent reaction (MCR) of sulfur ylides. In the presence of a bulky chiral phosphoric acid, the reaction combines sulfoxonium ylides, aldehydes and thiols, and affords synthetically versatile β‐hydroxy‐α‐sulfanyl carbonyl compounds in ...
Nicolò Santarelli +10 more
wiley +2 more sources
Crystal structure of cis-2-(2-carboxycyclopropyl)glycine (CCG-III) monohydrate
Acta Crystallographica Section E: Crystallographic Communications, 2015 The title compound, C6H9NO4·H2O [systematic name: (αR,1R,2S)-rel-α-amino-2-carboxycyclopropaneacetic acid monohydrate], crystallizes with two organic molecules and two water molecules in the asymmetric unit.
Sergey Lindeman +2 more
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Catalytic Functionalization of Unactivated π‐Bonds Enabled by Bidentate Directing Auxiliaries
Angewandte Chemie, EarlyView.This review explores how bidentate directing auxiliaries have advanced transition‐metal catalysis for unactivated alkene/alkyne functionalization. By leveraging chelated intermediates, bidentate directing auxiliaries enable precise hydrofunctionalization, difunctionalization, and C─H activation of π‐bonds with unique selectivity and reactivity.
Seunghyeon Cho +4 more
wiley +2 more sources
Space-filling models of the cyclopropane molecule
, 2022 Cyclopropane is a cycloalkane, consisting of three methylene groups linked to each other to form a ring. The small size of the ring creates substantial ring strain in the structure. Cyclopropane itself is mainly of theoretical interest but many of its
Junjie Chen (13997541)
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Acta Crystallographica Section E: Crystallographic Communications, 2019 The title compound, C18H18F2N2O3, crystallizes with two independent molecules (A and B) in the asymmetric unit. They differ essentially in the orientation of the pyridine ring with respect to the benzene ring; these two rings are inclined to each other ...
G. Artheswari +2 more
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Gold-catalyzed ethylene cyclopropanation
Beilstein Journal of Organic Chemistry, 2019 Ethylene can be directly converted into ethyl 1-cyclopropylcarboxylate upon reaction with ethyl diazoacetate (N2CHCO2Et, EDA) in the presence of catalytic amounts of IPrAuCl/NaBArF4 (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ylidene; BArF4 ...
Silvia G. Rull +2 more
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, 2016 It is known that peptide mimics containing trans-substituted cyclopropanes stabilize extended conformations of oligopeptides, and molecular modeling studies now suggest that the corresponding cis-cyclopropane dipeptide isosteres could stabilize a reverse
Benoît Hartmann (2988510) +3 more
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New Anti-Infective Preparations of Naphthyloxypropargylpiperidine Series
Eurasian Chemico-Technological Journal, 2017 1-Alkyl-4-(3-naphthyloxyprop-1-ynyl)piperidine-4-ols have been obtained by the condensation of 1-alkyl-pipieridin-4-ones with 1- and 2-naphthoxypropines by the Favorsky method in absolute diethylether, in the presence of powered technical KОН, under ...
F. M. Sadyrbayeva +4 more
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Synthesis of 2-[2-(Ethoxymethoxy)phenyl]spiro[cyclopropane-1,2′-indene]-1′,3′-dione
Molbank, 2023 An 1,3-indanedione-derived donor–acceptor cyclopropane, bearing the ethoxymethyl-protected phenolic group at the ortho-position of the donor aryl substituent, has been synthesized using a reaction sequence involving the Knoevenagel condensation of 1,3 ...
Olga A. Ivanova +6 more
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