Regiocontrolled cobalt-catalyzed Diels-Alder reactions of silicon-functionalized, terminal, and internal alkynes
(Chemical Equation Presented) The efficient control of the regiochemistry of the Diels-Alder adducts which are formed in excellent yields from 1,3-dienes and alkynylsilanes can be realized utilizing cobalt complexes with a pyridine-imine ligand or a dppe ligand, respectively. The application of 2-trimethylsilyloxy-1,3-butadiene leads to a very interesting cyclohexenone derivative suitable for further transformations.
Hilt, Gerhard,Janikowski, Judith
supporting information; experimental part
p. 773 - 776
(2009/08/19)
Ueber Tetraaryl-Methan-Analoga in der Gruppe 14. II. Ph4-nSi-p-Toln und Ph4-nSn-p-Toln (n = 0 bis 4): Einfluss der p-Tolyl-Substituenten auf Struktur und NMR-chemische Verschiebungen
The title compounds have been synthesized by Li and Grignard reactions.The crystal structure of Ph3Si-p-Tol has been determined.The substitution of only one phenyl by one p-tolyl group causes only a slight deviation from the ideal S4 symmetry of Ph4Si.Gra
Charisse, Michael,Gauthey, Valerie,Draeger, Martin
p. 47 - 53
(2007/10/02)
Catalytic process for producing silahydrocarbons
Silahydrocarbons such as tetraorganosilanes prepared from halo-substituted silanes and an organomagnesium compound in the presence of a catalytically effective amount of a cyanide.
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(2008/06/13)
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