A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09&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

Nickel-catalysed cyclopropanation of electron-deficient alkenes with diiodomethane and diethylzinc. | LitMetric

Nickel-catalysed cyclopropanation of electron-deficient alkenes with diiodomethane and diethylzinc.

Chem Commun (Camb)

Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8, Biomedical Grove, Neuros, #07-01, Singapore 138665.

Published: February 2016

In the presence of a nickel catalyst, the cyclopropanation of electron-deficient alkenes with diiodomethane and diethylzinc is drastically accelerated. A wide range of cyclopropyl ketones, esters and amides can be accessed under these conditions.

Download full-text PDF

Source
http://dx.doi.org/10.1039/c5cc10296kDOI Listing

Publication Analysis

Top Keywords

cyclopropanation electron-deficient
8
electron-deficient alkenes
8
alkenes diiodomethane
8
diiodomethane diethylzinc
8
nickel-catalysed cyclopropanation
4
diethylzinc presence
4
presence nickel
4
nickel catalyst
4
catalyst cyclopropanation
4
diethylzinc drastically
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!