55967-04-9Relevant articles and documents
Highly Twisted Ethylene Dianion Dilithium Stabilized by Phenyl and Sillyl Groups
Sekiguchi, Akira,Ichinohe, Masaaki,Nakanishi, Tetsuo,Kabuto, Chizuko,Sakurai, Hideki
, p. 3215 - 3220 (1995)
Phenyl- and silyl-substituted ethylene dianion dilithiums, > (2) and (4), were prepared an characterized by X-ray crystallography as well as NMR spectra.The crystal structures of 2 and 4 revealed interesting structural features.One of the lithium cations was located near to the two central carbon atoms, ipso and ortho carbons of the phenylring, while the other one was found above the benzene ring.The central C-C bond is twisted by ca. 90 deg for 2 and ca. 70 deg for 4.
Synthesis of an [(NHC)2Pd(SiMe3)2] complex and catalytic cis-bis(silyl)ations of alkynes with unactivated disilanes
Ansell, Melvyn B.,Roberts, Debbie E.,Cloke, F. Geoffrey N.,Navarro, Oscar,Spencer, John
supporting information, p. 5579 - 5582 (2015/09/21)
The novel complex cis-[(ITMe)2Pd(SiMe3)2 (ITMe=1,3,4,5-tetramethylimidazol-2-ylidene) has been synthesized by mild oxidative cleavage of Me3SiSiMe3 using [(ITMe)2Pd0]. The use of this complex as precatalyst for the cis-bis(silyl)ation of alkynes using unactivated disilanes is reported. Double the Si: The novel complex cis-[(ITMe)2Pd(SiMe3)2] (1, ITMe=1,3,4,5-tetramethylimidazol-2-ylidene) has been synthesized by mild oxidative cleavage of Me3SiSiMe3 using [(ITMe)2Pd0]. The synthesized complex was used as a precatalyst for the cis-bis(silyl)ation of alkynes using unactivated disilanes.