Recyclable Cu/C<sub>3</sub>N<sub>4</sub> composite catalyzed AHA/A<sup>3</sup> coupling reactions for the synthesis of propargylamines
作者:Hang Xu、Jun Wang、Peng Wang、Xiyu Niu、Yidan Luo、Li Zhu、Xiaoquan Yao
DOI:10.1039/c8ra06613b
日期:——
be efficient for the synthesis of propargylamines using a three-componentcouplingreaction of alkynes, CH2Cl2 and amines (AHA) without additional base. Moreover, the catalyst also showed highly catalytic activity in the synthesis of C1-alkynylated tetrahydroisoquinolines (THIQs) via an A3 reaction of alkynes, aldehydes and THIQ. The Cu/C3N4-catalyzed multicomponent reactions exhibited good functional
发现非均相 Cu/C 3 N 4催化剂可有效合成炔丙基胺,使用炔烃、CH 2 Cl 2和胺 (AHA) 的三组分偶联反应,无需额外碱。此外,该催化剂在通过炔烃、醛和 THIQ的 A 3反应合成 C1-炔基化四氢异喹啉 (THIQ) 中也表现出高度催化活性。Cu/C 3 N 4催化的多组分反应在大多数例子中表现出良好的官能团耐受性。此外,容易制备的 Cu/C 3 N 4催化剂可以方便地回收和重复使用5次以上而不会失去催化活性。
Silica nanospheres supported diazafluorene iron complex: an efficient and versatile nanocatalyst for the synthesis of propargylamines from terminal alkynes, dihalomethane and amines
作者:R. K. Sharma、Shivani Sharma、Garima Gaba
DOI:10.1039/c4ra10384j
日期:——
A novel silica nanosperes supported diazafluorene iron complex has been fabricated and found to be effective in three-component coupling reaction of terminal alkynes, dichloromethane and amines.
Nickel-catalyzed three-component coupling reaction of terminal alkynes, dihalomethane and amines to propargylamines
作者:Satish R. Lanke、Bhalchandra M. Bhanage
DOI:10.1002/aoc.3071
日期:2013.12
bond formation reactions using alkynes. Propargylic amines are synthetically versatile intermediates for the preparation of many nitrogen‐containing biologically active motifs. Herein, a 15 mol% Ni(py)4Cl2/bipyridine‐catalyzed three‐component coupling reaction of alkynes, halomethane and amines through C―H and C―halogen activation was developed for the facilesynthesis of propargylic amines. Tetramethylguanidine
pharmaceutically relevant propargylamines through one-pot three-componentcoupling reactions of amines, CH2Cl2, and terminal alkynes (AHA) using nano Au/CeO2 as a heterogeneous catalyst is reported. The catalyst is characterized by DRX, DR-UV visible spectroscopy, and TEM. Gold particles are regularly distributed on ceria and range in size from 2 to 4 nm.
报道了一种简单有效的方法,该方法通过使用纳米Au / CeO 2作为非均相催化剂,通过胺,CH 2 Cl 2和末端炔烃(AHA)的一锅三组分偶联反应合成药学上相关的炔丙基胺。该催化剂的特征在于DRX,DR-UV可见光谱和TEM。金颗粒规则分布在二氧化铈上,大小范围为2至4 nm。
Efficient synthesis of propargylamines from terminal alkynes, dichloromethane and tertiary amines over silver catalysts
A simple, efficient and highly functional group compatible method for the synthesis of propargylamines from terminal alkynes, dichloromethane and tertiary amines using silver catalysts has been developed.