Asymmetric Allylation of Aldimines with Indium and (+)‐Cinchonine
摘要:
By applying indium and allyl bromide, aldimines were converted into homoallyl amines with excellent yields. The addition of (+)-cinchonine to the reaction mixture yielded enantioselective allylation with 22-44% ee.
Three-component reactions of nitroarenes, benzaldehydes, and allyltributylstannane using indium in dilute aqueous HCl at room temperature afford the corresponding homoallylic amines in high yields within 5-10 min. The conversion in one-pot synthesis involves the following steps: (i) reduction of nitro compounds to amines, (ii) formation of imines from amines and aldehydes, and (iii) allylation of imines. (C) 2008 Elsevier Ltd. All rights reserved.
SmI<sub>2</sub>MEDIATED ALLYLATION OF ALDIMINES WITH ALLYL BROMIDE
作者:Byeong Hyo Kim、Rongbi Han、Ryun Ju Park、Kyung Ho Bai、Young Moo Jun、Woonphil Baik
DOI:10.1081/scc-100104829
日期:2001.1
In a mild reaction with SmI2, aldimines have been converted into homoallyl amines in good yields.
Asymmetric Allylation of Aldimines with Indium and (+)‐Cinchonine
作者:Rongbi Han、Seung Hyuk Choi、Kee In Son、Young Moo Jun、Byung Min Lee、Byeong Hyo Kim
DOI:10.1081/scc-200061721
日期:2005.6.1
By applying indium and allyl bromide, aldimines were converted into homoallyl amines with excellent yields. The addition of (+)-cinchonine to the reaction mixture yielded enantioselective allylation with 22-44% ee.