1259515-20-2Relevant academic research and scientific papers
Calcium-catalyzed dehydrogenative silylation of aromatic ethers with hydrosilane
Zhao, Lanxiao,Shi, Xianghui,Cheng, Jianhua
, p. 2041 - 2046 (2021)
The catalytic regioselective C-H silylation of a wide range of alkoxysubstituted benzene derivatives with primary hydrosilane was achieved by the use of scorpionate-supported calcium benzyl complex [(TpAd,iPr)Ca(p-CH2C6H4Me)(THP)] (1) (TpAd,iPr = hydrotris(3-adamantyl-5-isopropylpyrazolyl)borate, THP = tetrahydropyran) as the precatalyst. This protocol offers an atom-efficient and straightforward method for the synthesis of a variety of silyl-substituted aromatic ether derivatives without a hydrogen acceptor and free of transition metal. Calcium anisyl complexes [(TpAd,iPr)Ca(o-MeO-m-Br-C6H3)] (5) and [(TpAd,iPr)Ca(o-Me-OCH2C6H4)] (6), proposed as the catalytic reaction intermediates, were isolated and structurally characterized.
Alkyl scandium complexes coordinated by dianionic O,N,N- and O,N,O-ligands derived from Schiff bases
Cherkasov, Anton V.,Gurina, Galina A.,Kissel, Alexander A.,Ob'edkov, Anatoly M.,Trifonov, Alexander A.
, p. 631 - 634 (2021/11/26)
The reactions of imino phenols 3,5-But2-2-HOC6H2CH=NX (X = 8-C9H6N, 2-MeO-5-MeC6H3 and 2-PhOC6H4) with Sc(CH2SiMe3)3/
Scandium-catalyzed silylation of aromatic C-H bonds
Oyamada, Juzo,Nishiura, Masayoshi,Hou, Zhaomin
supporting information; experimental part, p. 10720 - 10723 (2012/01/04)
Regioselective, hydrogen-acceptor-free C-H bond silylation of anisoles or alkoxy-substituted benzenes with hydrosilanes was achieved by use of a half-sandwich scandium catalyst. The reaction proceeds through ortho-C-H activation of an anisole compound by a scandium hydride species followed by the silylation of the resulting scandium 2-anisyl species with a hydrosilane (see scheme). Copyright
