Base-Induced Highly Regioselective Synthesis of <i>N</i><sup>2</sup>-Substituted 1,2,3-Triazoles under Mild Conditions in Air
作者:Jian Ji、Cong Guan、Qinghua Wei、Xuwen Chen、Yun Zhao、Shunying Liu
DOI:10.1021/acs.orglett.1c03743
日期:2022.1.14
We developed a highly regioselective base-induced synthesis of N2-substituted 1,2,3-triazoles from N-sulfonyl-1,2,3-triazoles and alkyl bromides/alkyl iodides at room temperature. We propose an SN2-like mechanistic pathway to explain the high N2-regioselectivity. The protocol features a broad substrate scope and generates products in good to excellent yields (72–90%).
我们开发了一种在室温下由N-磺酰基-1,2,3-三唑和烷基溴/烷基碘合成N 2 -取代的 1,2,3-三唑的高度区域选择性碱诱导合成。我们提出了一种类似 S N 2 的机制途径来解释高N 2区域选择性。该协议具有广泛的底物范围,并以良好的产量产生产品 (72–90%)。
Copper(I)-catalyzed tandem reaction: synthesis of 1,4-disubstituted 1,2,3-triazoles from alkyl diacyl peroxides, azidotrimethylsilane, and alkynes
作者:Muhammad Israr、Changqing Ye、Munira Taj Muhammad、Yajun Li、Hongli Bao
DOI:10.3762/bjoc.14.270
日期:——
A copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction for the synthesis of 1,4-disubstituted 1,2,3-triazolesfrom alkyl diacyl peroxides, azidotrimethylsilane, and terminalalkynes is reported. The alkyl carboxylic acids is for the first time being used as the alkyl azide precursors in the form of alkyl diacyl peroxides. This method avoids the necessity to handle organic azides, as they are