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

(E)- and (Z)-β-borylallylsilanes by alkyne silaboration followed by regio- and stereoselective double-bond migration. | LitMetric
Browse Categories

(E)- and (Z)-β-borylallylsilanes by alkyne silaboration followed by regio- and stereoselective double-bond migration.

Toshimichi Ohmura Kazuyuki Oshima Michinori Suginome

Angew Chem Int Ed Engl

Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan.

Published: December 2011

Double take: β-Borylallylsilanes have been synthesized by the regioselective silaboration of terminal alkynes followed by palladium-catalyzed double-bond migration of the resulting β-borylalkenylsilanes. The stereoselectivity of the double-bond migration can be controlled by additives, thus leading to the stereocomplementary synthesis of (E)- and (Z)-β-borylallylsilanes.

Download full-text PDF

 Source
http://dx.doi.org/10.1002/anie.201106077DOI Listing

Publication Analysis

Top Keywords

double-bond migration
12
z-β-borylallylsilanes alkyne
4
alkyne silaboration
4
silaboration regio-
4
regio- stereoselective
4
stereoselective double-bond
4
migration double
4
double β-borylallylsilanes
4
β-borylallylsilanes synthesized
4
synthesized regioselective
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!

Privacy Policy Site Map

© LitMetric 2025. All rights reserved.