Herein, we demonstrated an efficient protocol for reductivealkylation of azides/nitro compounds via a borrowing hydrogen (BH) method. By following this protocol, selective mono- and dialkylated amines were obtained under mild and solvent-free conditions. A series of control experiments and deuterium-labeling experiments were performed to understand this catalytic process. Mechanistic studies suggested
Ionomers comprising higher alkyl ammonium or quaternary polyammonium salts of polyacids, particularly sulfonic acids, having anionic groups covalently bonded to carbon atoms comprising a backbone chain of a polymer, or to acyclic, alicyclic or aromatic radicals which are pendant to the backbone chain of the polymer, are novel compositions of matter. These ionomers vary in properties from water-soluble polyelectrolytes useful as thickening agents to thermoplastic elastomers which can be extruded, injection molded, vacuum formed, etc. at elevated temperatures. The elastomers are useful as speciality and general purpose rubbers.
Detergent composition having textile softening property
申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0023367A1
公开(公告)日:1981-02-04
Detergent compositions having good cleaning performance and also textile softening properties comprise an organic surfactant, alkaline reacting water-soluble salts and a specified class of tertiary amines. Optionally and preferably a smectite-type clay is also present in the compositions.
Process for the extraction of organic acids from aqueous solution
申请人:MILES LABORATORIES, INC.
公开号:EP0049429A1
公开(公告)日:1982-04-14
Organic acids, such as citric acid, malic acid and lactic acid. can be extracted from aqueous solutions thereof by contacting such solutions with a mixture of a water immiscible amine and a water immiscible organic acid dissolved in a suitable water immiscible solvent.
Detergent composition with fabric softening properties
申请人:UNILEVER PLC
公开号:EP0213730A1
公开(公告)日:1987-03-11
A fabric treatment composition contains at least a detergent active material, a fabric softening agent and 0.5 to 3% a nonionic substituted cellulose ether derivative which has an HLB of 3.1 to 4.3 and a gel point of less than 58°C, which improve softening performances on cotton while controlling deposition on synthetic fabrics. Ethyl, hydroxyethyl or methyl hydroxyethyl cellulose ethers are preferred. The detergent active material is anionic or a mixture thereof with other detergent active materials and may be present at 2 to 50% of the composition. The softening agent may be soap, a cationic material, a fatty amine and/or a clay with a soap/cationic mixture being preferred, and may be present at 0.5 to 50% of the composition.