Dichlorodigermacyclobutanes and digermabicyclo[2.2.0]hexanes from the reactions of [tris(trimethylsilyl)methyl]chlorogermylene with olefins

Organometallics

Volumn 15, Issue 14, 1996, Pages 3103-3105

  Ohtaki, Toshiyuki ^a   Ando, Wataru ^a  

^a UNIVERSITY OF TSUKUBA   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 4243168008     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om9600147     Document Type: Article

References (16)

1. Ando, W.; Ohgaki, H.; Kabe, Y. Angew. Chem., Int. Ed. Engl. 1994, 33, 659 and references cited therein.
2. Ohgaki, H.; Kabe, Y.; Ando, W. Organometallics 1995, 14, 2139.
3. (a) Jutzi, P.; Leue, C. Organometallics 1994, 13, 2898.
4. (b) Lange, L.; Meyer, B.; du Mout, W. W. J. Organomet. Chem. 1987, 329, C17.
5. (c) Kohl, F. X.; Jutzi, P. J. Organomet. Chem. 1983, 243, 31.
6. (d) Jutzi, P. J. Organomet. Chem. 1990, 400, 1.
7. (e) Jutzi, P.; Becker, A.; Leue, C.; Stammler, H. G.; Neumann, B. Organometallics 1991, 10, 3838.
8. (f) Jutzi, P.; Schmidt, H.; Neumann, B.; Stammler, H. G. J. Organomet. Chem. 1995, 499, 7.
9. 3N in 25 mL of THF at 0 °C. After the mixture was stirred for 1 h at ambient temperature, the solvent was removed under reduced pressure. The residual orange solid was extracted with 50 mL of pentane. Filtration through Celite afforded a clear orange solution. The latter was cooled to -78 °C to give a pale yellow solid (3.70 g, 41.0%).
10. 2), 53.50, 64.06 (CH).
11. 2: C, 43.38; H, 941. Found: C, 43.58; H, 9.46.
12. 2O complex (no external ethylene present) with 2a in THF gave a complex mixture of oligomers, decomposition products (mainly Tsi-H), and halogen-exchanged starting material. Neither the Ge-Ge-coupled dimer nor compound 4a was obtained (by TLC or HPLC).
13. w = 0.086. One trisyl group showed disordering; therefore, these extra atoms were omitted in Figure 1.
14. Reductive dehalogenation of 1,2-dichloro-1,1,2,2-tetrakis(2,4,6-triisopropylphenyl)disilane using lithium naphthalenide gave a stable disilene: Watanabe, H.; Takeuchi, K.; Nakajima, K.; Nagai, Y.; Goto, M. Chem. Lett. 1988, 1343.
15. Barrau, J.; Escudie, J.; Satge, J. Chem. Rev. 1990, 90, 283 and references cited therein.
16. 2: C, 46.03; H, 9.44. Found: C, 45.91; H, 9.35.