Tetrahedron p. 8349 - 8370 (1997)
Update date:2022-08-03
Topics:
Fujiwara, Tooru
Sawabe, Koichi
Takeda, Takeshi
(E)-Alkenylsilanes were synthesized with high stereoselectivity by the diastereoselective addition of the dimethylphenylsilyllithium to the trans-2-phenylthiocyclobutyl ketones and the Lewis acid-promoted promoted stereospecific ring opening reactions of the resulting cyclobutanemethanol derivatives. (E)-1,5-Disubstituted 1,5-dienylsilanes and germanes were also produced stereoselectively by the similar zinc salt-catalyzed ring opening reaction of α-dimethylphenylsilyl- or α-triethylgermyl-1-[2-(trimethylsilylmethyl)cyclobutane]methanol derivatives.
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