Issue 41, 2016
From the journal:

Dalton Transactions

Synthesis and isolation of non-chromophore cage-rearranged silsesquioxanes from base-catalyzed reactions†

Sasikarn Hanprasit,a   Nuttanee Tungkijanansin,a   Arisa Prompawilai,a   Supattra Eangpayunga  and  Vuthichai Ervithayasuporn*a  

* Corresponding authors

a Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Center for Catalysis, Center for Inorganic and Materials Chemistry, and Center of Intelligent Materials and Systems, Nanotec Center of Excellence, Faculty of Science, Mahidol University, Rama VI road, Ratchathewi, Bangkok 10400, Thailand
E-mail: vuthichai.erv@mahidol.ac.th

Abstract

The nucleophilicity of both ortho- and meta-nitrophenolate anions is strong enough to give substituted products, but their basicity also facilitates cage-rearrangement reactions in polyhedral oligomeric silsesquioxanes (POSS). Anions having a stronger basicity, but weaker nucleophilicity, such as CO32−, gave products only from cage-rearrangement, with the cage expansion products being isolable in multi-gram quantities using conventional column chromatography.

Graphical abstract: Synthesis and isolation of non-chromophore cage-rearranged silsesquioxanes from base-catalyzed reactions

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Article information

DOI
https://doi.org/10.1039/C6DT02585D
Article type
Communication
Submitted
29 Jun 2016
Accepted
22 Jul 2016
First published
25 Jul 2016

Dalton Trans., 2016,45, 16117-16120

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Synthesis and isolation of non-chromophore cage-rearranged silsesquioxanes from base-catalyzed reactions

S. Hanprasit, N. Tungkijanansin, A. Prompawilai, S. Eangpayung and V. Ervithayasuporn, Dalton Trans., 2016, 45, 16117 DOI: 10.1039/C6DT02585D

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