383863-75-0Relevant academic research and scientific papers
The first 1,3-digermyla-2-nickela-carboranylene and the Ni-catalyzed double germylation of unsaturated organic substrates
Lee,Lee,Shim Sung Lee,Sang Ook Kang,Ko
, p. 1730 - 1731 (2001)
The reaction of o-bis(dimethylgermyl)carborane with Ni(PEt3)4 in pentane affords the reactive intermediate, [o-(GeMe2)2C2B10H 10]Ni(PEt3)2 2: the facile dou
Ni-catalyzed double gemylation of alkynes and alkenes
Lee, Junghyun,Lee, Taegweon,Lee, Shim Sung,Park, Ki-Min,Kang, Sang Ook,Ko, Jaejung
, p. 3922 - 3929 (2008/10/08)
The reaction of 1,2-bis(dimethylgermyl)carborane with Ni(PEt3)4 yielded the cyclic bis-(germyl)nickel complex 2. 2 was found to be a good catalyst for the double germylation reaction. Thus, the reaction of 1 with RC=CR′ in the presence of a catalytic amount of 2 yielded the six-membered digermyl ring compounds B10H10C2(GeMe2)2(RC=CR ′) (R = R′ = Ph (3); R = Ph, R′ = H (4); R = R′ = Et (5); R = Ph, R′ = Me (6); R = R′ = Me (7); R = Ph, R′ = SiMe3 (8); R = R′ = SiMe3 (9); R = R′ = CO2Me (10)). In contrast, the reaction of 1 with 1-hexyne under the same reaction conditions yielded the five-membered digermyl ring compound B10H10C2(GeMe2)2(C=C(C 4H9)H) (11). The intermediate was also found to be a good reactant for the double germylation of some alkenes. Thus, the stoichiometric reaction of 2 with 4-vinylanisole and 1,1-diphenylethylene gave the five-membered digermylene compounds (14 and 15). However, the stoichiometric reaction of 2 with 2,3-dimethylbutadiene afforded a different type of five-membered digerma compound 17 via the 1,4-migration of the hydride. The crystal structures of 2, 6, 12, 14, and 17 are described.
