Search Results - "MAKOSZA, M"

Cocatalysis in phase-transfer catalyzed fluorination of alkyl halides and sulfonates by Mąkosza, M., Bujok, R.

“…Phase-transfer catalyzed (PTC) fluorination of alkyl halides and sulfonates with solid KF proceeds efficiently when cocatalyst triphenyltin fluoride is used…”
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Halogens in γ-position enhance the acidity of alkyl aryl sulfones and alkane nitriles by Judka, M., Wojtasiewicz, A., Danikiewicz, W., Mąkosza, M.

“…On the basis of measuring the rates of base-catalyzed deuterium exchange the p K a values of a series of 3-halopropyl aryl sulfones and 4-halobutyronitriles…”
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Dichlorocarbene and analogs: discovery, properties and reactions by Mąkosza, M., Fedoryński, M.

“…The discovery and studies of chemistry of dichlorocarbene and other electron deficient carbenes are discussed…”
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Electrophilic and nucleophilic aromatic substitution: Analogous and complementary processes by Mąkosza, M.

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New Reactions of γ-Halocarbanions: Simple Synthesis of Substituted Tetrahydrofurans by Ma̧kosza, Mieczysław, Judka, Marek

“…The treatment of 4‐chlorobutyronitrile, 3‐chloropropyl phenyl sulfone, and other related compounds with a base afforded γ‐halocarbanions that undergo fast…”
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Remarks on the mechanism of phase-transfer catalyzed carbanion generation in two-phase systems by Mąkosza, M., Kryklowa, I.

“…Competitive of addition of CCl−3 anions to N-alkyl-pyridinium salts and to vinyl acetate, t-butyl acrylate and benzaldehyde was studied in a two-phase system,…”
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Vicarious nucleophilic substitution of hydrogen by Makosza, Mieczyslaw, Winiarski, Jerzy

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Vicarious nucleophilic substitution of hydrogen. Mechanism and orientation by Mąkosza, Mieczysław, Kwast, Andrzej

“…Hydrogens located at activated positions in electrophilic arenes, e.g. ortho and para hydrogens in nitrobenzenes, can be replaced with a nucleophile moiety…”
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Synthesis of heterocyclic compounds via vicarious nucleophilic substitution of hydrogen by Makosza, M.

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Reactions of organic anions. 161. Dihalomethylation of nitroarenes via vicarious nucleophilic substitution of hydrogen with trihalomethyl carbanions by Makosza, M, Owczarczyk, Z

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Phase transfer catalysis in dichlorocarbene chemistry: basic principles and specific features by Ma̧kosza, M., Fedoryński, M.

“…The discovery, basic mechanistic concepts, and specific features of generation and reactions of dichlorocarbene under phase transfer catalysis conditions are…”
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Nucleophilic Substitution of Hydrogen in Heterocyclic Chemistry by Ma̧kosza, Mieczysław, Wojciechowski, Krzysztof

“…Nucleophiles can react with electron-deficient arenes in a variety of ways. The most important of them in addition to the ring to form anionic sigma-adducts…”
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Oxidation of Nitrobenzylic Carbanions with Dimethyldioxirane. New Synthesis of Quinomethanes and Nitrobenzylic Carbinols. First Examples of Methylation of Carbanions with Dimethyldioxirane by Ma̧kosza, Mieczysław, Adam, Waldemar, Zhao, Cong-Gui, Surowiec, Marek

“…The reaction of nitrobenzylic carbanions with dimethyldioxirane (DMD) results in oxidation at the carbanion center or at the nitronate center to give…”
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Selective One-Pot N-Monomethylation of 2-Nitroanilines Under Ptc Conditions by Voskresensky, Sergei, Makosza, Mieczyslaw

“…Direct PTC methylation of 2-nitroanilines with dimethyl sulfate gave selectively N-monomethylated products. A variety of N-methyl-2-nitroanilines were prepared…”
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Two-phase reactions in the chemistry of carbanions and halocarbenes. A useful tool in organic synthesis by Makosza, M.

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Phase-transfer catalysis. A general green methodology in organic synthesis by Makosza, Mieczyslaw

“…Basic concept of phase-transfer catalysis (PTC), its field of applications and specific features as the most general, efficient, and environment-friendly green…”
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SYNTHESIS OF HEXASUBSTITUTED NITROBENZENE DERIVATIVES via VICARIOUS NUCLEOPHILIC SUBSTITUTION OF HYDROGEN by Makosza, M., Nizamov, S.

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Phase Transfer Catalysis by BELL, Alexis T

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Nitroarylamines via the Vicarious Nucleophilic Substitution of Hydrogen:  Amination, Alkylamination, and Arylamination of Nitroarenes with Sulfenamides by Ma̧kosza, Mieczysław, Białecki, Maciej

“…A new reaction of sulfenamides with electrophilic arenes under basic conditions is described. The σ adducts formed from nitroarenes and the anions of…”
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Reactions of carbanions with carbon tetrachloride in two-phase systems. Chlorinated products as nucleophilic and electrophilic intermediates by MAKOSZA, M, KWAST, A, KWAST, E, JONCZYK, A

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