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

Sasikarn Hanprasit Nuttanee Tungkijanansin Arisa Prompawilai Supattra Eangpayung Vuthichai Ervithayasuporn

Dalton Trans

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.

Published: October 2016

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 CO, gave products only from cage-rearrangement, with the cage expansion products being isolable in multi-gram quantities using conventional column chromatography.

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http://dx.doi.org/10.1039/c6dt02585dDOI Listing

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