96475-96-6Relevant academic research and scientific papers
Synthesis of lanthanide(II)-imine complexes and their use in carbon-carbon and carbon-nitrogen unsaturated bond transformation
Takaki, Ken,Komeyama, Kimihiro,Takehira, Katsuomi
, p. 10381 - 10395 (2007/10/03)
Ytterbium and samarium metals reduced aromatic ketimines to give directly divalent azalanthanacyclopropane complexes 1 quantitatively, the structure of which was characterized by X-ray analysis. The imine complexes 1 catalyzed dehydrogenative silylation of terminal alkynes, hydrosilylation of imines and alkenes, and intermolecular hydrophosphination of alkynes. Moreover, dehydrogenative double silylation of conjugated dienes was achieved with 1.
Inter- and intramolecular carbonylative alkyne-alkyne coupling reaction mediated by cobalt carbonyl complex
Shibata, Takanori,Yamashita, Koji,Takagi, Kentaro,Ohta, Toshihiro,Soai, Kenso
, p. 9259 - 9267 (2007/10/03)
Inter- and intramolecular carbonylative coupling reactions proceed between alkynes possessing diphenylallylsilyl group mediated by dicobalt carbonyl complex under argon atmosphere. This coupling reaction directly provides various mono- and bicyclic cyclopentadienones in high yields. (C) 2000 Elsevier Science Ltd.
Dehydrogenative silylation of terminal alkynes catalyzed by Ytterbium- imine complexes
Takaki, Ken,Kurioka, Masanobu,Kamata, Tohru,Takehira, Katsuomi,Makioka, Yoshikazu,Fujiwara, Yuzo
, p. 9265 - 9269 (2007/10/03)
Catalytic dehydrogenative silylation of terminal alkynes with hydrosilanes has been achieved by using divalent Yb-imine complexes. The reaction with mono-, di-, and trihydrosilanes gave the corresponding alkynylsilanes in good yields. α,ω-Diynes were similarly silylated at both termini. Thus, oligomers were obtained from the diynes and dihydrosilanes. In addition, it has been found that the imine complexes exhibit catalytic activity for redistribution of the silyl groups of the alkynylsilanes and for Si-Si bond fission of disilanes.
The Stereochemistry of Organometallic Compounds. XXXIV. Regioselection in the Hydroformylation of Silylalkenes
Doyle, M. Michael,Jackson, W. Roy,Perlmutter, Patrick
, p. 1907 - 1918 (2007/10/02)
The regiochemistry of hydroformylation of alkenes can be controlled by use of bulky silyl groups attached to the alkene.Use of the t-butyldiphenylsilyl group leads to almost total regiocontrol and the method has been applied to the synthesis of aldols.
THE STEREOCHEMISTRY OF ORGANOMETALLIC COMPOUNDS. XXXVI. REGIO- AND STEREO-CHEMICAL CONTROL IN THE NICKEL-CATALYSED HYDROCYANATION OF SILYLALKYNES
Fitzmaurice, Neil J.,Jackson, W. Roy,Perlmutter, Patrick
, p. 375 - 382 (2007/10/02)
The regioselectivity of hydrocyanation of silylalkynes can be controlled by varying the size of the groups attached to silicon leading, for example, to efficient preparations of E-3-trialkylsilyl-2-alkyl-2-alkenenitriles.High yields of the silylalkene nitriles can be obtained by using either acetone cyanohydrin or hydrogen cyanide as reagents.
