4.2.8. Reductive Coupling 3109 5. Reaction of Aromatic Compounds 3110 5.1. Electrophilic Substitutions 3110 5.2. Radical Substitution 3111 5.3. Oxidative Coupling 3111 5.4. Photochemical Reactions 3111 6. Reaction of Carbonyl Compounds 3111 6.1. Nucleophilic Additions 3111 6.1.1. Allylation 3111 6.1.2. Propargylation 3120 6.1.3. Benzylation 3121 6.1.4. Arylation/Vinylation 3121 6.1.5. Alkynylation 3121 6.1.6. Alkylation 3121 6.1.7. Reformatsky-Type Reaction 3122 6.1.8. Direct Aldol Reaction 3122 6.1.9. Mukaiyama Aldol Reaction 3124 6.1.10. Hydrogen Cyanide Addition 3125 6.2. Pinacol Coupling 3126 6.3. Wittig Reactions 3126 7. Reaction of R,â-Unsaturated Carbonyl Compounds 3127

Organic Reactions in Aqueous Media with a Focus on Carbon−Carbon Bond Formations: A Decade Update

Recent progress in the synthesis of 1,2,3,4,-tetrahydroquinolines

Electron-transfer processes: peroxydisulfate, a useful and versatile reagent in organic chemistry

This minireview is aimed at giving an overview of recent advances in olefin functionalisation reactions involving aryl radicals generated from arenediazonium salts. Based on the well-known Meerwein arylation, in which an aryl and a halogen substituent are coupled to an olefinic substrate, new reaction types have been developed that allow the introduction of a broad spectrum of other atoms and functional groups at the place of the original halogen atom and that are applicable to an extended range of olefinic substrates.

Intermolecular olefin functionalisation involving aryl radicals generated from arenediazonium salts.

This Account outlines the recent efforts of developing catalysis under the ambient conditions of air and water for synthetic purposes from the author's laboratory. The discussions are focused on catalytic reactions (mostly C-C bond formations) other than oxidations via late transition metals. It includes the following aspects: (1) copper-catalyzed C-C bond formations; (2) palladium-catalyzed C-C bond formations; (3) rhodium-catalyzed C-C bond formations; (4) ruthenium-catalyzed olefin isomerizations and C-H activations. The mechanism, limitations, and synthetic applications of these reactions are also discussed.

Quasi-Nature Catalysis: Developing C−C Bond Formations Catalyzed by Late Transition Metals in Air and Water

Efficient acetalisation of aldehydes catalyzed by titanium tetrachloride in a basic medium

Mild acetalisation of mono and dicarbonyl compounds catalysed by titanium tetrachloride. Facile synthesis of β-keto enol ethers

Pinacolic coupling of aromatic aldehydes and ketones promoted by aqueous titanium trichloride in basic media.

Radical addition to the carbonyl carbon of ketones promoted by aqueos titanium trichloride in acidic medium, one step synthesis of pinacols and lactones

Ombretta Porta

Papers

Efficient acetalisation of aldehydes catalyzed by titanium tetrachloride in a basic medium

Mild acetalisation of mono and dicarbonyl compounds catalysed by titanium tetrachloride. Facile synthesis of β-keto enol ethers

Pinacolic coupling of aromatic aldehydes and ketones promoted by aqueous titanium trichloride in basic media.

Radical addition to the carbonyl carbon of ketones promoted by aqueos titanium trichloride in acidic medium, one step synthesis of pinacols and lactones

Arylative amination of aldehydes promoted by aqueous titanium trichloride