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: 3122
Function: getPubMedXML

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

Asymmetric organocatalysis: an efficient enantioselective access to benzopyranes and chromenes. | LitMetric

Asymmetric organocatalysis: an efficient enantioselective access to benzopyranes and chromenes.

Chemistry

Degussa Endowed Professorship, Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt am Main, Max-von-Laue Strasse 7, Frankfurt am Main, Germany.

Published: September 2008

Download full-text PDF

Source
http://dx.doi.org/10.1002/chem.200800836DOI Listing

Publication Analysis

Top Keywords

asymmetric organocatalysis
4
organocatalysis efficient
4
efficient enantioselective
4
enantioselective access
4
access benzopyranes
4
benzopyranes chromenes
4
asymmetric
1
efficient
1
enantioselective
1
access
1

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!