Literature DB >> 23665923

Photoswitchable NHC-promoted ring-opening polymerizations.

Bethany M Neilson1, Christopher W Bielawski.   

Abstract

The UV-induced photocyclization of a dithienylethene-annulated N-heterocyclic carbene precatalyst enabled photoswitchable ring-opening polymerizations of ε-caprolactone and δ-valerolactone. The polymerizations proceeded efficiently in ambient light, however UV irradiation attenuated the reaction rate (k(amb)/k(UV) = 59). Subsequent visible light exposure reversed the photocyclization and restored catalytic activity.

Entities:  

Year:  2013        PMID： 23665923     DOI： 10.1039/c3cc42424c

Source DB:  PubMed          Journal:  Chem Commun (Camb)        ISSN： 1359-7345            Impact factor:   6.222


  4 in total

1.  Variations in the fuel structure control the rate of the back and forth motions of a chemically fuelled molecular switch.

Authors:  Chiara Biagini; Simone Albano; Rachele Caruso; Luigi Mandolini; José Augusto Berrocal; Stefano Di Stefano
Journal:  Chem Sci       Date:  2017-10-18       Impact factor: 9.825

Review 2.  Spotting Trends in Organocatalyzed and Other Organomediated (De)polymerizations and Polymer Functionalizations.

Authors:  María Valle; Marta Ximenis; Xabier Lopez de Pariza; Julian M W Chan; Haritz Sardon
Journal:  Angew Chem Int Ed Engl       Date:  2022-08-10       Impact factor: 16.823

3.  Photoswitchable Nitrogen Superbases: Using Light for Reversible Carbon Dioxide Capture.

Authors:  Lukas F B Wilm; Mowpriya Das; Daniel Janssen-Müller; Christian Mück-Lichtenfeld; Frank Glorius; Fabian Dielmann
Journal:  Angew Chem Int Ed Engl       Date:  2021-11-26       Impact factor: 16.823

4.  Chemical signal activation of an organocatalyst enables control over soft material formation.

Authors:  Fanny Trausel; Chandan Maity; Jos M Poolman; D S J Kouwenberg; Frank Versluis; Jan H van Esch; Rienk Eelkema
Journal:  Nat Commun       Date:  2017-10-12       Impact factor: 14.919
  4 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.