Copper(II) Triflate as a Double Catalyst for the One-Pot Click Synthesis of 1,4-Disubstituted 1,2,3-Triazoles from Benzylic Acetates
作者:Shin-ichi Fukuzawa、Eiji Shimizu、Satoshi Kikuchi
DOI:10.1055/s-2007-986638
日期:2007.9
Copper(II) triflate doubly catalyzed the substitution of benzylic acetates by TMSN3 and the subsequent 1,3-dipolar addition with an alkyne in one pot. This procedure afforded the preparation of 1,4-disubstituted 1,2,3-triazoles in good yields starting from the easily accessible acetates without isolating an organic azide using a single catalyst.
铜(II)三氟甲磺酸盐双重催化苄基乙酸酯与TMSN3的取代反应,以及随后与炔烃的一锅法1,3-偶极加成反应。该过程以良好产率制备了易于获得的乙酸酯为起始物,无需分离有机叠氮化合物,仅使用单一催化剂即可合成1,4-二取代的1,2,3-三唑。