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searching for Ylide 46 found (109 total)

alternate case: ylide

Dicarbon monoxide (313 words) [view diff] exact match in snippet view article find links to article

15596-07-3) contains the C2O functionality. Sometimes called Bestmann's Ylide, it is a yellow solid. Frenking, Gernot; Tonner, Ralf "Divalent carbon(0)

Peterson olefination (727 words) [view diff] no match in snippet view article find links to article

The Peterson olefination (also called the Peterson reaction) is the chemical reaction of α-silyl carbanions (1 in diagram below) with ketones (or aldehydes)

Corey–Fuchs reaction (378 words) [view diff] exact match in snippet view article find links to article

carbon tetrabromide to produce the triphenylphosphine-dibromomethylene ylide. This ylide undergoes a Wittig reaction when exposed to an aldehyde. Alternatively

Curtin–Hammett principle (3,757 words) [view diff] exact match in snippet view article find links to article

activation barriers for the step following ylide formation. If the ortho-methoxy group undergoes oxonium ylide formation, a 1,4-methyl shift can then generate

Neil Vasdev (1,819 words) [view diff] exact match in snippet view article find links to article

[18F]fluoride into non-activated aromatic molecules using spirocyclic iodoium ylide based precursors. Based on their paper in Nature Communications, a patent

Cornforth rearrangement (367 words) [view diff] exact match in snippet view article find links to article

rearrangement to the oxazole, which is isomeric to the starting compound. The ylide intermediate has several resonance contributors and the stability of said

Pyruvate dehydrogenase (1,279 words) [view diff] exact match in snippet view article find links to article

(acetyl-transferring). The thiamine pyrophosphate (TPP) converts to an ylide by deprotonation. The ylide attack the ketone group of pyruvate. The resulting adduct

Elias James Corey (5,646 words) [view diff] exact match in snippet view article find links to article

ylide in situ that reacts with enones, ketones, aldehydes, and imines to form corresponding epoxides, cyclopropanes, and aziridines. Two sulfur ylide

Zwitterion (1,042 words) [view diff] exact match in snippet view article find links to article

transfer), organic electronics, switching and sensing. Amphoterism Azomethine ylide "Zwitterion". Chemistry LibreTexts. 2015-11-03. Retrieved 2022-02-11. Skoog

Jennifer Schomaker (698 words) [view diff] exact match in snippet view article find links to article

lactonization and its application to the total synthesis of (+)-tanikolide, the ylide-mediated homologative ring expansion of epoxides and aziridines in the synthesis

Hydrogen thioperoxide (713 words) [view diff] exact match in snippet view article find links to article

gas phase existence of HSOH (hydrogen thioperoxide) and SOH2 (thiooxonium ylide)". Chemical Physics Letters. 221 (5–6): 359–362. Bibcode:1994CPL...221.

Hydrogen thioperoxide (713 words) [view diff] exact match in snippet view article find links to article

gas phase existence of HSOH (hydrogen thioperoxide) and SOH2 (thiooxonium ylide)". Chemical Physics Letters. 221 (5–6): 359–362. Bibcode:1994CPL...221.

Zinc chloride (3,493 words) [view diff] exact match in snippet view article find links to article

Ylide chemistry. 1. Bifunctional acid-base-catalyzed conversion of heterosubstituted methanes into ethylene and derived hydrocarbons. The onium ylide

Maurizio Prato (scientist) (1,147 words) [view diff] exact match in snippet view article

Maggini and G. Scorrano, he published the first paper on the azomethine ylide cycloaddition to C60, which resulted to be a very useful reaction of functionalization

Tagetitoxin (997 words) [view diff] exact match in snippet view article find links to article

with α-diazoesters: synthesis of the tagetitoxin core by photochemical ylide rearrangement". Org. Biomol. Chem. 10 (43): 8616–27. doi:10.1039/c2ob26308d

Wittig reagents (714 words) [view diff] exact match in snippet view article find links to article

an important step when optimizing a Wittig reaction. Because phosphonium ylides are seldom isolated, the byproduct(s) generated upon deprotonation essentially

Synthon (810 words) [view diff] exact match in snippet view article find links to article

synthesis of tetrahydrofurans via a synthetic equivalent to a carbonyl ylide". Journal of the American Chemical Society. 110 (18): 6249–6251. doi:10

Trimethylsulfoxonium iodide (116 words) [view diff] exact match in snippet view article find links to article

M.; Koops, Roger W.; Olden, Caroline C. (1985). "Phosphorus and sulfur ylide formation: Preparation of 1-benzoyl-2-phenylcyclopropane and 1,4-diphenyl-1

KAHA Ligation (284 words) [view diff] exact match in snippet view article find links to article

(Fmoc-based solid phase peptide synthesis). Initial research utilised sulfur ylide linkers, but more recently the group developed acid- and photo-labile ketoacid

Cyclopentadecanolide (213 words) [view diff] exact match in snippet view article find links to article

PMID 20820651. Bestmann, Hans Jürgen; Schobert, Rainer (1989). "Kumulierte Ylide XX. Synthesen (E)-α,β-ungesättigter macrocyclischer Lactone durch intramolekulare

Münchnone (407 words) [view diff] exact match in snippet view article find links to article

cyclodehydration of 2-pyridone-N-acetic acid with acetic anhydride. The azomethine ylide reactivity of münchnones, and their reaction with alkynes in the synthesis

Epothilone (2,163 words) [view diff] exact match in snippet view article find links to article

diisobutylaluminium hydride, and the aldehyde was reacted with the stabilized ylide in the Wittig reaction. Asymmetric allylboration of the α,β-unsaturated

Hexamethylbenzene (4,014 words) [view diff] exact match in snippet view article find links to article

Ylide chemistry. 1. Bifunctional acid-base-catalyzed conversion of heterosubstituted methanes into ethylene and derived hydrocarbons. The onium ylide

Doyle–Kirmse reaction (541 words) [view diff] exact match in snippet view article find links to article

William H.; Bagheri, Vahid (1981). "Highly effective catalytic methods for ylide generation from diazo compounds. Mechanism of the rhodium- and copper-catalyzed

Horsfiline (416 words) [view diff] exact match in snippet view article find links to article

Giovenzana GB, Pilati T, Sisti M, Palmisano G (December 2001). "Azomethine ylide cycloaddition/reductive heterocyclization approach to oxindole alkaloids:

Iain Coldham (123 words) [view diff] exact match in snippet view article find links to article

Chemistry - University of Sheffield Chiral organolithium chemistry Azomethine ylide cycloaddition Natural product synthesis Extance, Andy (16 March 2015). "Fake

Transition metal carbene complex (1,969 words) [view diff] exact match in snippet view article find links to article

nucleophilic carbon atom behaves similarly to the carbon atom of the phosphorus ylide in the Wittig reaction, attacking the electrophilic carbonyl atom of a ketone

Organosilicon chemistry (2,547 words) [view diff] exact match in snippet view article find links to article

alkoxides, although the latter often deprotonate the organosilane to a silicon ylide instead. As a covalent hydride source, hydrosilanes are good reductants

Withaferin A (764 words) [view diff] exact match in snippet view article find links to article

adducts of withaferin-A via one-pot three-component [3+2] azomethine ylide cycloaddition and their cytotoxicity evaluation". Molecular Diversity. 19

Tetramethylphosphonium bromide (138 words) [view diff] exact match in snippet view article find links to article

trimethylphosphine with methyl bromide. Deprotonation gives methylenetrimethylphosphine ylide, which can sustain a second deprotonation: (CH3)4PBr + BuLi → CH3)3P=CH2

Trimethylsulfoxonium (647 words) [view diff] exact match in snippet view article find links to article

water react with trimethylsulfoxonium and sodium hydroxide to form sulfur ylide complexes. In the chloride, the sulfur-oxygen bond length is 1.436 Å, sulfur-carbon

David Hodgson (chemist) (345 words) [view diff] exact match in snippet view article

Frederic Le (2004). "Use of allene in 1,3-dipolar addition to a carbonyl ylide: syntheses of 3-hydroxy-cis-nemorensic acid and nemorensic acid". Chemical

Carbones (2,814 words) [view diff] exact match in snippet view article find links to article

and a formally carbon (0) atom with two free lone pairs. Phosphaketene ylides (general formula R3P=C=C=O) and carbon suboxide (O=C=C=C=O) have also exhibited

Nitrile (3,396 words) [view diff] exact match in snippet view article find links to article

nitriles: Nitrilium Deprotonated nitriles: Nitrile anion Cyanocarbon Nitrile ylide IUPAC Gold Book nitriles NCBI-MeSH Nitriles Karakida, Ken-ichi; Fukuyama

Poly(p-phenylene vinylene) (1,115 words) [view diff] exact match in snippet view article

evaluated. PPV can be synthesized by Wittig-type couplings between the bis(ylide) derived from an aromatic bisphosphonium salt and dialdehyde, especially

Lamellarin D (511 words) [view diff] exact match in snippet view article find links to article

group’s synthesis of lamellarin K includes an intramolecular azomethine ylide cyclization. Pyrrole Bailly, Christian; Newman, David J. (2015). Written

Progesterone (11,590 words) [view diff] exact match in snippet view article find links to article

phosphonium salt 7 with phenyl lithium to produce the phosphonium ylide 8. The ylide 8 is reacted with an aldehyde to produce the alkene 9. The ketal protecting

Jeannette Brown (983 words) [view diff] exact match in snippet view article find links to article

organic chemistry. Her master's thesis was entitled, “Study of Dye and Ylide Formation in Salts of 9-(P-dimethylaminophenyl) Fluorene.” After receiving

Dana Dattelbaum (885 words) [view diff] exact match in snippet view article find links to article

internships at the University. She completed an honors these on nitrogen ylide chemistry under Gary Crowther. She received her Ph.D. from the University

Ferulic acid decarboxylase (977 words) [view diff] exact match in snippet view article find links to article

substrates. In the case of AnFdc1 it was noted that prFMN displays an azomethine ylide characteristic C4a-N5+=C1’(Figure 1). This is a well-known 1,3-dipole in

Proline-catalyzed aldol reactions (2,633 words) [view diff] exact match in snippet view article find links to article

possible side-reactions: the ketone and proline to an oxazolidinone; and two copies of the aldehyde and proline decarboxylating to an azomethine ylide.

Cascade reaction (2,825 words) [view diff] exact match in snippet view article find links to article

with rhodium(II) acetate dimer generated a carbenoid that yielded reactive ylide 65 after an intramolecular cyclization with the neighboring carbonyl group

Kalkitoxin (2,902 words) [view diff] exact match in snippet view article find links to article

alcohol and oxidation to the corresponding aldehyde, Wittig reaction using an ylide carrying a methoxy group to produce an enol ether, hydrolysis to the aldehyde

Macrocyclic stereocontrol (2,664 words) [view diff] exact match in snippet view article find links to article

ketone was achieved, and can be modeled by peripheral attack of the sulfur ylide on the carbonyl group in a Johnson-Corey-Chaykovsky reaction to yield the

Phosphasilene (3,350 words) [view diff] exact match in snippet view article find links to article

S.; Wang, W.; Präsang, C.; Asay, M.; Irran, E.; Driess, M. (2011). "An Ylide-like Phosphasilene and Striking Formation of a 4π-Electron, Resonance-Stabilized

Probe tip (8,217 words) [view diff] exact match in snippet view article find links to article

polycyclic hydrocarbons generated by solution and on-surface azomethine ylide homocoupling". Nature Communications. 8 (1): 1948. Bibcode:2017NatCo...8