Tetrahedron Letters p. 6025 - 6028 (1995)
Update date:2022-08-30
Topics:
Torborg, Charles J.
Rabasco, John J.
Kass, Steven R.
Lithium triethylborohydride reacts with the triisopropylbenzene sulfonate ester of 2-methoxy-5,5-dimethyl-2-vinyl-3-cyclohexen-1-ol (1) to afford 8-methoxy-6,6-dimethylspiro[2.5]oct-4-ene (3). Labeling studies reveal that this novel cyclopropane forming reaction proceeds with retention of configuration at the newly formed quaternary center.
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