98213-22-0Relevant articles and documents
Regioselective 1,4-silylcupration of 1,3-dienes - Characterization and electrophilic trapping of the intermediate σ-allyl)copper complex
Liepins, Vilnis,Baeckvall, Jan-E.
, p. 3527 - 3535 (2007/10/03)
Silylcupration reactions of 1,3-dienes with a cyanocuprate reagent PhMe2SiCuCNLi produce a (4-silyl-2-alken-1-yl)-copper complex, which was trapped by electrophiles. The use of allylic phosphates as electrophiles resulted in highly regioselecti
Silylcupration of 1,3-dienes followed by an electrophilic trapping reaction
Liepins, Vilnis,Baeckvall, Jan-E
, p. 1861 - 1864 (2007/10/03)
(matrix presented) Silylcupration reaction of 1,3-dienes with a cyanocuprate reagent, PhMe2SiCuCNLi, followed by an electrophilic trapping has been reported for the first time. The use of allylic phosphates as electrophiles resulted in a highly
Manganese-Catalyzed Silylmagnesiation of Acetylenes and 1,3-Dienes
Tang, Jun,Shinokubo, Hiroshi,Oshima, Koichiro
, p. 245 - 251 (2007/10/03)
The treatment of 4-benzyloxy-1-butyne with PhMe2SiMgMe in the presence of a catalytic amount of MnCl2 gave a monosilylated product, (E)-PhCH2OCH2CH2CH=CHSiMe2Ph, selectively after an aqueou
Photochemical reactions of aryl-substituted catenates of group 4B elements, PhMe2E-E'Me3 (E, E' = Si and Ge). Formation of a radical pair
Mochida, Kunio,Kikkawa, Haruhiko,Nakadaira, Yasuhiro
, p. 9 - 19 (2007/10/02)
Photochemical reactions of phenyl substituted catenates of group 4B elements, PhMe2E-E'Me3 (E, E' = Si and Ge) have been investigated by chemical trapping experiments and laser flash-photolysis.On irradiation, the phenylated group 4B catenate undergoes E-E' bond homolysis to give a pair of radicals (PhMe2E. and Me3E'.).In CCl4, these radicals are converted to the corresponding chlorides by abstraction of a chlorine atom.In a nonhalogenated solvent, the radical pair couples at the ipso-position of the phenyl group of the pairing radical (PhMe2E.) to yield the cor responding diradical.This undergoes either elimination of a divalent species (Me2E:) with concomitant formation of trimethylphenyl group 4B element PhMe3E') or intramolecular 1,2-group 4B element migration to yield group 4B metal-carbon double bonded species.The radical escapes from the solvent cage coupled to the metal atom of the radical to yield the dimetallic product.The reaction path observed is highly dependent on the nature of the group 4B element comprising the phenyl substituted catenate.
