Zn(<scp>L</scp>-proline)<sub>2</sub>as a powerful and reusable organometallic catalyst for the very fast synthesis of 2-amino-4<i>H</i>-benzo[<i>g</i>]chromene derivatives under solvent-free conditions
作者:Behrooz Maleki、Saeed Babaee、Reza Tayebee
DOI:10.1002/aoc.3306
日期:2015.6
An efficient route for the synthesis of 2‐amino‐4H‐benzo[g]chromenes via a three‐component coupling reaction of aldehydes, malononitrile and 2‐hydroxy‐1,4‐naphthaquinone in the presence of Zn( L‐proline)2 is reported. High yields, short reaction times, non‐toxicity and recyclability of the catalyst, and easy work‐up are the main merits of this protocol. Copyright © 2015 John Wiley & Sons, Ltd.
在锌(L-脯氨酸)存在下,醛,丙二腈和2-羟基-1,4-萘醌的三组分偶联反应合成2-氨基-4 H-苯并[ g ]色烯的有效途径报告2。该方案的主要优点是高收率,较短的反应时间,催化剂的无毒性和可回收性以及易于后处理。版权所有©2015 John Wiley&Sons,Ltd.