Three-Component Reactions of Arynes, Amines, and Nucleophiles via a One-Pot Process
作者:Gyoungwook Min、Jeongseob Seo、Haye Min Ko
DOI:10.1021/acs.joc.8b01058
日期:2018.8.3
An unprecedented three-component reaction of arynes, tertiary amines, and nucleophiles has been demonstrated through ammonium salt intermediates. This protocol allows access to tertiary aniline derivatives containing the piperazine motif in good-to-excellent yields. Expansively, this reaction can produce biologically important 2-(4-phenylpiperazin-1-yl)ethyl-containing molecules using arynes, 1,4-diazabicyclo(2
방향족 화합물, 아민 및 친핵체를 이용한 3가지 성분 반응으로 1-에틸-4-페닐피페라진 유도체를 제조하는 방법
申请人:Wonkwang University Center for Industry-Academy Cooperation 원광대학교산학협력단(220040233365) BRN ▼403-82-09152
公开号:KR20200033474A
公开(公告)日:2020-03-30
본 명세서는 트리플루오로메탄설포네이트기와 트리메틸실릴기가 서로 오르토위치에 결합된 방향족 화합물이 아린 중간체로 형성되는 제1반응단계; 상기 아린 중간체가 답코(DABCO)와 반응하여 4차 암모늄염으로 형성되는 제2반응단계; 및 상기 4차 암모늄염과 친핵체를 반응시키는 제3반응단계;를 포함하고, 상기 제1반응단계 내지 제3반응단계는 원팟(one-pot)반응으로 수행되는 것을 특징으로 하는 1-에틸-4-페닐피페라진 유도체의 제조방법에 대하여 개시한다.
A rapid and efficient method for the fluoroalkylation of amines and amides. Development of a method suitable for incorporation of the short-lived positron emitting radionuclide fluorine-18
作者:Dae Yoon Chi、Michael R. Kilbourn、John A. Katzenellenbogen、Michael J. Welch
DOI:10.1021/jo00380a030
日期:1987.2
CHI DAE YOON; KILBOURN M. R.; KATZENELLENBOGEN J. A.; WELCH M. J., J. ORG. CHEM., 52,(1987) N 4, 658-664
作者:CHI DAE YOON、 KILBOURN M. R.、 KATZENELLENBOGEN J. A.、 WELCH M. J.
DOI:——
日期:——
N-Arylation of DABCO with Diaryliodonium Salts: General Synthesis of <i>N</i>-Aryl-DABCO Salts as Precursors for 1,4-Disubstituted Piperazines
作者:Dmitry I. Bugaenko、Marina A. Yurovskaya、Alexander V. Karchava
DOI:10.1021/acs.orglett.8b02676
日期:2018.10.19
Employing DABCO as a substrate, aryl(mesityl)iodonium triflates are introduced as arylating agents for a tertiary sp3-nitrogen. Mild conditions and exceptional selectivity of the aryl group transfer allow unprecedented N-aryl-DABCO salts to be obtained, bearing substituents of different electronic natures. This metal-free methodology has no analogy among known transition-metal-based reactions. The