Construction of 2,3,4,5-tetrahydro-1,2,4-triazines via [4 + 2] cycloaddition of α-halogeno hydrazones to imines-Reference-Cited by-同舟云学术

Construction of 2,3,4,5-tetrahydro-1,2,4-triazines via [4 + 2] cycloaddition of α-halogeno hydrazones to imines

Published:2017 Issue:15 Volume:7 Page:9264-9271
ISSN:2046-2069
Container-title:RSC Advances
language:en
Short-container-title:RSC Adv.

Author:

Zhao Hong-Wu¹²³⁴^ORCID,Pang Hai-Liang¹²³⁴^ORCID,Zhao Yu-Di¹²³⁴^ORCID,Liu Yue-Yang¹²³⁴^ORCID,Zhao Li-Jiao¹²³⁴,Chen Xiao-Qin¹²³⁴^ORCID,Song Xiu-Qing¹²³⁴,Feng Ning-Ning¹²³⁴^ORCID,Du Juan¹²³⁴^ORCID

Affiliation:

1. College of Life Science and Bio-engineering

2. Beijing University of Technology

3. Beijing 100124

4. P. R. China

Abstract

In the presence of sodium carbonate, the [4 + 2] cycloaddition of α-halogeno hydrazones to imines proceeded readily, and furnished 2,3,4,5-tetrahydro-1,2,4-triazines in moderate to high chemical yields.

Funder

Beijing Municipal Commission of Education

Publisher

Royal Society of Chemistry (RSC)

Subject

General Chemical Engineering,General Chemistry

Link

http://pubs.rsc.org/en/content/articlepdf/2017/RA/C6RA27767E

Reference39 articles.

1. Interceptive [4 + 1] Annulation of in Situ Generated 1,2-Diaza-1,3-dienes with Diazo Esters: Direct Access to Substituted Mono-, Bi-, and Tricyclic 4,5-Dihydropyrazoles

2. First preparation and reaction of polymer-bound 1,2-diaza-1,3-butadienes. A convenient entry to 4-triphenylphosphoranylidene-4,5-dihydropyrazol-5-ones

3. Fluoride-Assisted Synthesis of 1,4,5,6-Tetrahydropyridazines via [4 + 2] Cyclodimerization of in Situ-Generated Azoalkenes Followed by a C–N Bond Cleavage