Premium
Fast, High‐Yielding Syntheses of Silsesquioxanes Using Acetonitrile as a Reactive Solvent
Author(s) -
Pescarmona Paolo P.,
van der Waal Jan C.,
Maschmeyer Thomas
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300494
Subject(s) - chemistry , acetonitrile , solvent , yield (engineering) , medicinal chemistry , organic chemistry , stereochemistry , metallurgy , materials science
New and efficient methods for the synthesis of cyclopentyl‐ and cyclohexylsilsesquioxanes are described. In the case of cyclopentylsilsesquioxane, pure trisilanol ( c ‐C 5 H 9 ) 7 Si 7 O 9 (OH) 3 was obtained selectively within 18 h in an isolated yield of 64%. The synthesis of cyclohexylsilsesquioxanes also gives high yields, but it is not selective towards a particular structural type [main products: ( c ‐C 6 H 11 ) 6 Si 6 O 9 , ( c ‐C 6 H 11 ) 6 Si 6 O 8 (OH) 2 , ( c ‐C 6 H 11 ) 7 Si 7 O 10 OH and ( c ‐C 6 H 11 ) 7 Si 7 O 9 (OH) 3 ]. We discuss the crucial role of acetonitrile as a reactive solvent in these syntheses. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom