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Tetracyclohexylsilane: The resolution of an enigma by Leonard Spialter; Glen R. Buell; Charles W. Harris; J.Dudley Austin is a Chemistry article available to read on EtoBox.

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The objective of this paper is the resolution of a state of confusion in the literature resulting from conflicting published reports on the synthesis of tetracyclohexylsilane, (I) \*\*\*. In 1954, Petrov and Chemysheva' described the preparation of this compound, of melting point 198, [labelled (I -P) in reaction (l)], from the condensation reaction of cyclohexyllithium with either tetrafluorosilane or with dicyclohexyldifluorosilane. Et+0 or SiFa or C6H1iCl+Li -C6H, ,Li + (C6H 1 &Si (?, m-p. 19S") (1) pet. ether (C&liilzgipz (1-P) Ph$i + H2 5 [><i&Si (?, m.p. 281') (2) where CsHl i = cyclohexyl ; Ph = Phenyl. Structure proof was based on the method of synthesis and analyses for only silicon (7.41 and 7.87% compared to the theoretical 7.77%). Simultaneously and independently, Kanazashi and Takakusa2 reported the nickel-catalyzed hydrogenation, with ~difliculty, of tetraphenylsilane to tetracyclohexylsilane, melting at 28X0, [labelled (I-K) in reaction (2)] \_ Molecular identity was based on the nature of the reaction, on similarities among the infrared absorption bands compared to those for other cyclohexylsilanes, and on analyses for carbon and hydrogen only\_ They also predicted

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Author

Leonard Spialter; Glen R. Buell; Charles W. Harris; J.Dudley Austin

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

1967

Language

EN

Field

Chemistry (Physical Sciences)