A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@remsenmedia.com&api_key=81853a771c3a3a2c6b2553a65bc33b056f08&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

Cu-catalyzed cross-coupling reactions of vinyl epoxide with organoboron compounds: access to homoallylic alcohols. | LitMetric

AI Article Synopsis

  • - Copper-catalyzed cross-coupling reactions are used to combine vinyl epoxide with arylboronates to create aryl-substituted homoallylic alcohols.
  • - This method shows different selectivity compared to past reactions using aryl nucleophiles for vinyl epoxide ring-opening.
  • - The process occurs under mild conditions, resulting in high selectivity and good to excellent yields of the desired products.

Article Abstract

Copper-catalyzed cross-coupling reactions of vinyl epoxide with arylboronates to obtain aryl-substituted homoallylic alcohols are described. The reaction selectivity was different to that of previously reported vinyl epoxide ring-opening reactions using aryl nucleophiles. The reaction proceeded under mild conditions, affording aryl-substituted homoallylic alcohols with high selectivity and in good to excellent yields. The reaction provides convenient access to aryl-substituted homoallylic alcohols from vinyl epoxide.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9092012PMC
http://dx.doi.org/10.1039/c8ra09048cDOI Listing

Publication Analysis

Top Keywords

vinyl epoxide
16
homoallylic alcohols
16
aryl-substituted homoallylic
12
cross-coupling reactions
8
reactions vinyl
8
cu-catalyzed cross-coupling
4
vinyl
4
epoxide
4
epoxide organoboron
4
organoboron compounds
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!