Reactive dye composition and method of dyeing polyamide materials
申请人:Good Christopher John
公开号:US20070107145A1
公开(公告)日:2007-05-17
The present invention relates to a method of dyeing polymeric substrates having pendent carboxyl groups, especially polyamides. The method comprises applying to a substrate a reactive dye solution and heating the substrate in the presence of a magnesium donor at a pH of greater than 9.0, such that the reactive dye forms a covalent bond with the carboxyl groups on the substrate. A dye composition for dyeing a polymeric substrates having pendent carboxyl groups is also disclosed.
Highly Chemoselective Aerobic Oxidation of Amino Alcohols into Amino Carbonyl Compounds
direct oxidation of unprotected amino alcohols to their corresponding amino carbonylcompounds has often posed serious challenges in organic synthesis and has constrained chemists to adopting an indirect route, such as a protection/deprotection strategy, to attain their goal. Described herein is a highly chemoselective aerobic oxidation of unprotected amino alcohols to their amino carbonyl compounds