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 Michael addition of aldehydes to nitroalkenes using a primary amino acid lithium salt. | LitMetric
Browse Categories

Asymmetric Michael addition of aldehydes to nitroalkenes using a primary amino acid lithium salt.

Masanori Yoshida Atsushi Sato Shoji Hara

Org Biomol Chem

Division of Chemical Process Engineering, Graduate School of Engineering, Hokkaido University, 8, Kita 13-jo Nishi, Kita-ku, 060-8628, Sapporo, Japan.

Published: June 2010

Enantioselective Michael addition of aldehydes to nitroalkenes was successfully carried out by asymmetric catalysis with L-phenylalanine lithium salt, giving gamma-nitroaldehydes in good yields with high enantioselectivity.

Download full-text PDF

 Source
http://dx.doi.org/10.1039/c003940cDOI Listing

Publication Analysis

Top Keywords

michael addition
8
addition aldehydes
8
aldehydes nitroalkenes
8
lithium salt
8
asymmetric michael
4
nitroalkenes primary
4
primary amino
4
amino acid
4
acid lithium
4
salt enantioselective
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.