3-(噻吩-2-基)-β-内酰胺的合成及其立体化学
- ISSN号:0567-7351
- 期刊名称:《化学学报》
- 时间:0
- 分类:O623.11[理学—有机化学;理学—化学]
- 作者机构:[1]Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education of China, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- 相关基金:Project supported partly by the National Natural Science Foundation of China (Nos. 20272002 and 20472005) and the Excellent Young Teacher Program and the Scientific Research Foundation for the Returned 0versea Chinese Scholars of Ministry of Education of China.
关键词:
硼烷, 手性化合物, 催化反应, 结构表征, 晶体结构, asymmetric catalysis, borane, enantioselective synthesis, ketone, oxazaborolidine, substituent effect
中文摘要:
一系列烷基 4-dialkylaminophenyl 酉同类被 borane 在 chiral oxazaborolidine 催化作用下面不均匀地准备并且减少。结果显示因为一个强壮的并列的氮原子的存在,酉同类与硼原子在不对称的减小比相应 4-alkyl/alkoxy/alkylthiophenyl 酉同类在 enantioselectivity 上显示出更明显的取代者效果在催化剂和 borane。
英文摘要:
A series of alkyl 4-dialkylaminophenyl ketones were prepared and reduced asymmetrically by borane under the chiral oxazaborolidine catalysis. The results indicate that the ketones show a more obvious subsfituent effect on the enanfioselectivity than the corresponding 4-alkyl/alkoxy/alkylthiophenyl ketones in the asymmetric reduction because of the existence of a strong coordinate nitrogen atom with the boron atom in the catalyst and borane.