Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization

Jutzi P, Keitemeyer S, Neumann B, Stammler H-G (1999)
ORGANOMETALLICS 18(23): 4778-4784.

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Abstract
The synthesis of novel heteroleptic germanium(II) compounds starting from [2,4-di-tertbutyl-6-((dimethylamino)methyl)phenyl]germanium chloride, MamxGeCL(1), is reported. 1 reacts with potassium alkoxides to give the alkoxy-substituted compounds MamxGeO-t-Bu (2), MamxGeO-i-Pr (3), MamxGeOEt (4), and MamxGeOMe (5). The ethynyl-substituted species MamxGe(C=CPh) (6) and MamxGe(C=CH) (7) are obtained by the reaction of 1 with LiC=CPh and NaC=CH, respectively. The alkyl-substituted germanium(II) species MamxGeR (R = t-Bu (8), n-Bu (9), Me (10)) are formed by the reaction of 1 with the corresponding alkyllithium compounds. Derivatization of 8-10 with Mel leads to the formation of compounds containing the germyl cations [MamxGe(t-Bu)(Me)](+) (11a), [MamxGe(n-Bu)(Me)](+) (12a), and [MamxGe(Me)(2)](+) (13a), respectively. All new species have been characterized by NMR, MS, and microanalytical data. X-ray crystal structure determinations are presented for 3, 4, 6, 7, and 11.
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Jutzi P, Keitemeyer S, Neumann B, Stammler H-G. Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization. ORGANOMETALLICS. 1999;18(23):4778-4784.
Jutzi, P., Keitemeyer, S., Neumann, B., & Stammler, H. - G. (1999). Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization. ORGANOMETALLICS, 18(23), 4778-4784.
Jutzi, P., Keitemeyer, S., Neumann, B., and Stammler, H. - G. (1999). Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization. ORGANOMETALLICS 18, 4778-4784.
Jutzi, P., et al., 1999. Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization. ORGANOMETALLICS, 18(23), p 4778-4784.
P. Jutzi, et al., “Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization”, ORGANOMETALLICS, vol. 18, 1999, pp. 4778-4784.
Jutzi, P., Keitemeyer, S., Neumann, B., Stammler, H.-G.: Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization. ORGANOMETALLICS. 18, 4778-4784 (1999).
Jutzi, Peter, Keitemeyer, S, Neumann, B, and Stammler, Hans-Georg. “Novel heteroleptic germanium(II) compounds from [2,4-di-tert-butyl-6-((dimethylamino)methyl)phenyl]germanium chloride: Synthesis, structure, and derivatization”. ORGANOMETALLICS 18.23 (1999): 4778-4784.
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