Carbonylation Of Organic Halides Research Articles

ChemInform Abstract: Transition Metal Complex Catalyzed Carbonylation of Organic Halides in the Presence of Molecular Sieves Instead of Base.

Abstract In the presence of molecular sieves under base free conditions organic halides are successfully carbonylated under carbon monoxide pressure with water or alcohols catalyzed by Co or Pd complex to generate the corresponding carboxylic acids or esters, respectively, in good yields.

A versatile procedure for synthesis of organic acids by cobalt carbonyl catalyzed carbonylation of organic halides

A versatile procedure for synthesis of a broad range of fatty-aromatic and aromatic acids by carbonylation of the corresponding halides under very mild conditions in the presence of cobalt carbonyl as a catalyst was suggested. The main principles of a flexible process for production of practically significant acids and their derivatives were developed.

Carbonylation of Organic Halides with Carbon Monoxide Mediated by Samarium Diiodide. Improvement and Mechanistic Investigations.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Synthetic Applications of Palladium‐Catalyzed Carbonylation of Organic Halides

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Recent Developement of Polymerization Using Transition Metal Complexes as Catalyst

Recent studies on polymerization using transition metal complexes as catalyst are reviewed. Ti, W, and Ru complexes catalyze ring opening metathesis polymerization of cyclic olefins such as norbornene and cyclooctene to give the corresponding polymers. Living polymerization is achieved in many cases. Structures and reactivities of cyclopentadienyl complexes of Ti, Zr, and Hf are investigated in order to elucidate reaction mechanism of olefin polymerization catalyzed by Kaminsky system. Transition metal complex catalyzed synthetic organic reactions such as carbonylation of organic halides, arylation of olefins as well as cross-coupling of Grignard reagents with organic halides have been applied to preparation of various polymers. Coupling reaction of aryl halides promoted by Ni complex is developed to preparation of π-conjugated polymers which show interesting electrical and optical properties.

ChemInform Abstract: Transition Metal Complex‐Catalyzed Carbonylation of Organic Halides in N,N,N′,N′‐Tetraalkylurea Solution in the Absence of Added Base.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Cobalt Catalysed Carbonylation of Organic Halides under Solid-Liquid Phase Transfer Conditions

Abstract Organic halides are carbonylated under solid liquid phase transfer conditions using Co−(CO)4 as catalyst under CO (1 atmosphere) at 25°C to afford corresponding esters in good yields. No Carbonylation is effected in absence of phase transfer agent (PTA). The striking example is the carbonylation of ethyl haloacetate to diethyl malonate, an important organic intermediate. The parameters such as concentration of PTA, and catalyst and temperature are optimised.

ChemInform Abstract: Polymer‐Anchored Palladium Catalyst in Carbonylation of Organic Halides ‐ The First Example of Triphase Catalysis.

Polymer-anchored palladium-catalysed carbonylation of organic halides affords oxo esters in reasonable- yields under solid-liquid-solid phase transfer conditions at mild pressure and short durations.

ChemInform Abstract: Efficient Acid Fluoride Synthesis via Carbonylation of Organic Halides.

Abstract Palladium, platinum, cobalt, and rhodium triphenylphosphine complexes were found to catalyze the formation of acid fluorides via carbonylation of organic halides with fluoride salts. For palladium complex-catalyzed reactions, the use of cesium fluoride in polar solvents such as acetone and acetonitrile exhibited superior performance. The reaction took place even under an atmospheric pressure of carbon monoxide. The success of the acid fluoride synthesis is discussed in terms of the facility of oxidative addition of the starting material and the product.

ChemInform Abstract: A Perspective View of Carbon Monoxide Chemistry

Exploitation of new methodologies for utilization of carbon monoxide is one of fundamental technologies for alternative chemical feedstocks at present as well as in the future. This article describes a personal perspective of the studies on carbon monoxide chemistry, and is divided into four items; 1) design of new catalyst systems for hydroformylation and its application to asymmetric carbonylation, 2) unsymmetrical ketone synthesis via carbonylative cross-coupling of halides, 3) synthesis of α-keto acid derivatives and α-hydroxy acids via double carbonylation of organic halides, and 4) direct carbonylation of hydrocarbons through C-H bond activation.

Synthesis of alkyl(alkoxycarbonyl)tetracarbonyliron complexes [(Co)4Fe(CH2CO2Me)(CO2R)]: the first evidence of their relevance to the catalytic cycle in the carbonylation of organic halides induced by pentacarbonyliron

Reaction of [(CO)4Fe(CO2R)]–(1)(R = Me or But) with BrCH2CO2Me produces stable complexes [(CO)4Fe(CH2CO2Me)(CO2R)](3) which thermally decompose to yield Fe(CO)5 and malonic esters under a CO atmosphere; these reactions provide the first demonstration of possible key steps in the catalytic cycle of the carbonylation of reactive halides into esters with Fe(CO)5 and an alkoxide anion.

Efficient acid fluoride synthesis via carbonylation of organic halides

Palladium, platinum, cobalt, and rhodium triphenylphosphine complexes were found to catalyze the formation of acid fluorides via carbonylation of organic halides with fluoride salts. For palladium complex-catalyzed reactions, the use of cesium fluoride in polar solvents such as acetone and acetonitrile exhibited superior performance. The reaction took place even under an atmospheric pressure of carbon monoxide. The success of the acid fluoride synthesis is discussed in terms of the facility of oxidative addition of the starting material and the product.

Palladium catalyzed carbonylation of organic halides: the first example of carbonylation under solid-liquid phase transfer conditions

Palladium catalyzed carbonylation of aliphatic halides, iodobenzene, benzyl and substituted phenacyl halides affords effective yields under solid-liquid phase transfer conditions at mild pressures and short durations.

Tetracarbonyl cobaltate ion supported on anion exchangers as a new heterogenized homogeneous catalyst: synthesis of acids and esters from organic halides

Catalysts consisting of tetracarbonyl cobaltate anion supported on commercially available anion exchange resins are readily prepared. Carbonylation of organic halides using this heterogenized catalyst leads either to acids or esters depending on the conditions. Some features of this catalytic system and the possible reaction mechanism are discussed.

Cleavage of CN bonds of tertiary amines and carbonylation of organic halides with Palladium complexes as catalysts leading to formation of tertiary amides

The CN bond of tertiary amines was cleaved with a palladium complex as catalyst in the presence of an organic halide and carbon monoxide, and tertiary amides were obtained.

Nickel Complex-Catalyzed Methyl Ketone Synthesis via Carbonylation of Organic Halides with Tetramethyltin

Nickel Complex-Catalyzed Methyl Ketone Synthesis via Carbonylation of Organic Halides with Tetramethyltin

Carbonylation of organic halides in the presence of terminal acetylenes; novel acetylenic ketone synthesis

Aryl, heterocyclic, and vinylic halides react with carbon monoxide and terminal acetylenes at 120 °C or below and 80 atm or below in the presence of triethyl-amine and a catalytic amount of a palladium (II) complex to form acetylenic ketones in 46·7–92·9% yield.