Phosphanylalumanes for Alkyne Activation

  • Author: ChemPlusChem
  • Published Date: 18 June 2020
  • Source / Publisher: ChemPlusChem/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Phosphanylalumanes for Alkyne Activation

Related Societies

Phosphanylalumanes, i.e., P–Al single-bonded species, can combine the functions of isolated Lewis acids (LA) and Lewis bases (LB). This is similar to the principle of frustrated Lewis pairs (FLPs), in which a compound or mixture contains a Lewis acid and a Lewis base that cannot combine to form an adduct due to steric hindrance. Many FLPs can activate small molecules such as CO2 or H2.


Yoshiyuki Mizuhata, Kyoto University, Japan, and colleagues have found that phosphanylalumanes can be used for the activation of alkynes under mild conditions. The team reacted a λ33‐phosphanylalumane (pictured below on the left) with alkynes in benzene. The resulting adducts (pictured below on the right) are intramolecular FLPs.

 


These alkyne adducts can undergo typical FLP reactions, such as reversible binding with CO2. The team found that the adducts can also react with dimethyl acetylenedicarboxylate (DMAD) to give unique fused ring compounds (pictured below). According to the researchers, they will study further small-molecule activation reactions using phosphanylalumanes.

 


 

 

Article Views: 883

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


Magazine of Chemistry Europe (16 European Chemical Societies)published by Wiley-VCH