A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Iridium-Catalyzed Enantioselective Synthesis of Pyrrole-Annulated Medium-Sized-Ring Compounds. | LitMetric

Iridium-Catalyzed Enantioselective Synthesis of Pyrrole-Annulated Medium-Sized-Ring Compounds.

Angew Chem Int Ed Engl

State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China.

Published: August 2017

AI Article Synopsis

  • The study details an iridium-catalyzed method for synthesizing pyrrole-annulated medium-sized-ring compounds through a series of reactions, including allylic dearomatization and retro-Mannich processes.
  • Various seven- and eight-membered-ring products were successfully created under mild conditions, yielding moderate to good results with high enantioselectivity.
  • The developed method offers an efficient approach to access compounds that are commonly found in natural products and have biological significance.

Article Abstract

Enantioselective synthesis of pyrrole-annulated medium-sized-ring compounds by an iridium-catalyzed allylic dearomatization/retro-Mannich/hydrolysis sequence is presented. Various substituted pyrrole-annulated seven- and eight-membered-ring products were obtained under mild reaction conditions with moderate to good yields and excellent enantioselectivity. Additionally, these products contain a scaffold widely distributed in natural products and biologically active compounds. The current method provides a convenient way for accessing such pyrrole-anuulated medium-sized-ring compounds.

Download full-text PDF

Source
http://dx.doi.org/10.1002/anie.201705068DOI Listing

Publication Analysis

Top Keywords

medium-sized-ring compounds
12
enantioselective synthesis
8
synthesis pyrrole-annulated
8
pyrrole-annulated medium-sized-ring
8
iridium-catalyzed enantioselective
4
compounds
4
compounds enantioselective
4
compounds iridium-catalyzed
4
iridium-catalyzed allylic
4
allylic dearomatization/retro-mannich/hydrolysis
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!