A series of peroxy-containing tertiary alcohols were prepared by the reactions of lithium peroxy acetylenides with gamma-amino ketones. The reactions of the intermediate lithium peroxy alcoholates with alkyl iodides in the presence of hexamethylphosphoramide yielded the corresponding peroxy ethers. The thermal stability of the compounds synthesized was evaluated by thermal analysis.
One-pot, three-component Mannich-type reaction catalyzed by functionalized ionic liquid
作者:Dong Fang、Kai Gong、Dai-zhen Zhang、Zu-liang Liu
DOI:10.1007/s00706-009-0182-y
日期:2009.11
AbstractA three-componentMannich-typereaction of aromatic aldehydes, aromatic amines, and ketones was catalyzed by a novel functionalized ionic liquid, 3-(N,N-dimethyldodecylammonium)propanesulfonic acid hydrogen sulfate ([DDPA][HSO4]) at room temperature to give various β-amino carbonyl compounds in good yields. The catalyst could be reused at least six times without noticeably reducing catalytic
An effective polyelectrolyte Bronsted acid (polyacrylic acid) catalyzed three-componentMannichreactions accelerated by emulsion has been developed. The results demonstrated that the polyacrylic acid provided the best catalytic activity in...
Mesoporous silica nanoparticles (MSNs) as an efficient and reusable nanocatalyst for synthesis of β-amino ketones through one-pot three-component Mannich reactions
作者:Zahra Nasresfahani、Mohammad Zaman Kassaee、Mohammad Nejati-Shendi、Esmaiel Eidi、Qazale Taheri
DOI:10.1039/c6ra02454h
日期:——
Mesoporous silica nanoparticles (MSNs) proved efficient and reusable in the catalytic synthesis of β-amino ketones, through three-componentMannichreaction of ketones, aromatic aldehydes and aromatic amines under solvent-free conditions. Simple reaction conditions coupled with simple work-ups, makes this methodology a superior option for the synthesis of such β-amino ketones.
An environmentally friendly, photocontrollable and highly recyclable catalyst for use in a one-pot three-component Mannich reaction
作者:Qian Tang、Hong-jiang Quan、Song Liu、Lan-tao Liu、Cheuk-fai Chow、Cheng-bin Gong
DOI:10.1016/j.molcata.2016.05.006
日期:2016.9
H was investigated towards the one-potthree-component Mannich-type reaction of benzaldehyde, aniline and cyclohexanone in water at room temperature, and gave excellent yields. Interestingly, the catalytic activity could be regulated by photoirradiation. Furthermore, upon completion of the reaction, the product could be readily separated by extraction, and the water phase reused in the next run. Lastly