A general diversity oriented synthesis of asymmetric double-decker shaped silsesquioxanes.

Autor:	Barry BD; Department of Chemistry, Michigan State University, 578 S. Shaw Ln, East Lansing, Michigan 48824-1322, USA. maleczka@msu.edu., Dannatt JE; Department of Chemistry, Michigan State University, 578 S. Shaw Ln, East Lansing, Michigan 48824-1322, USA. maleczka@msu.edu., King AK; Department of Chemistry, Michigan State University, 578 S. Shaw Ln, East Lansing, Michigan 48824-1322, USA. maleczka@msu.edu., Lee A; Department of Chemical Engineering and Materials Science, Michigan State University, 428 S. Shaw Ln, East Lansing, Michigan 48824-1226, USA. leea@msu.edu., Maleczka RE Jr; Department of Chemistry, Michigan State University, 578 S. Shaw Ln, East Lansing, Michigan 48824-1322, USA. maleczka@msu.edu.
Jazyk:	angličtina
Zdroj:	Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2019 Jul 18; Vol. 55 (59), pp. 8623-8626.
DOI:	10.1039/c9cc03972d
Abstrakt:	A strategically novel synthesis of nano-sized, asymmetrically functionalized double-decker shaped silsesquioxanes (DDSQ) is reported. Selective protection with a boronic acid affords the crucial mono-protected intermediate en route to the asymmetric products. Generation of symmetric by-products is minimized by judicious choice of base, and high recovery of recyclable starting DDSQ tetraol is achieved.
Databáze:	MEDLINE
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