
Journal of the American Chemical Society p. 2223 - 2228 (1982)
Update date:2022-07-29
Topics:
Rule, Mark
Salinaro, Richard F.
Pratt, Dexter R.
Berson, Jerome A.
Reaction of 1,1-dibromo-2,6-dimethylhepta-1,5-diene (9) with MeLi in Et2O at -78 deg C results in cyclization to 2,6,6-trimethylbicyclo<3.3.0>hex-1-ene (3), which undergoes + ?> and + ?> dimerization to 6 and 11, respectively (Scheme II).At 0 deg C,
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