Linear polystyrene anchored l-proline, new recyclable organocatalysts for the aldol reaction in the presence of water
作者:Yu-Xia Liu、Ya-Nan Sun、Hao-Han Tan、Wei Liu、Jing-Chao Tao
DOI:10.1016/j.tetasy.2007.10.032
日期:2007.11
anchored catalysts 1a and 1b have been synthesized efficiently. The catalytic activities and stereoselectivity of these readily tunable and amphiphilicorganocatalysts were evaluated in the direct asymmetric aldol reaction of various aromatic aldehydes and ketones. By using 5 mol % of the catalysts, the corresponding products of the aldol reaction were obtained in good yields (up to 94%) and with excellent