- 作者: 張標宏; 林玉葉
- 作者服務機構: Research and Development Department, Ashland Chemical Company, P. O. Box 2219, Columbus, Ohio 43216 (U.S.A.)
- 中文摘要: A homogeneous catalyst, 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1, 3-thiazolium chloride, for addition of aldehydes to activated double bond, was attached to 20% cross-linked polystyrene-divinylbenzene copolymer. The attached catalysts could be easily removed from the reaction mixture. Polymer-attached thiazolium salts in the presence of triethylamine are active catalysts for addition of aromatic and aliphatic aldehydes to .alpha.,.beta.-unsaturated ketones to yield .gamma.-diketones.
- 英文摘要: --
- 中文關鍵字: Supported 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1, 3-thiazolium chloride; .alpha.,.beta.-unsaturated ketones; .gamma.-diketones.
- 英文關鍵字: Supported 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1, 3-thiazolium chloride; .alpha.,.beta.-unsaturated ketones; .gamma.-diketones.