Synthesis of Terpenoids. IV. The Use of Kinetic Enolates of some Methyl Ketones For Terpenoid Syntheses

References

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• Colorless oil; uv λmax (MeOH) 241 nm (ε 12160); ir (film) 3420, 1675, 1620, 990, 920 cm−1; nmr (CDCl3) [stilde] 1.30, 1.91 and 2.15 (s, 3H each), 2.70 (AB system, J=18Hz, 2H), 4.40 (broad signal, OH), 4.96 (dd, J=10Hz, J=2Hz, 1H), 5.20 (dd, J=16Hz, J=2Hz, 1H), 5.96 (dd, J=16Hz, J=10Hz, 1H), 6.03 (s, 1H).
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• Colorless oil; ir (film) 3450, 1710, 990, 910 cm−1; nmr (CDCl3) δ 0.90 (d, J=6Hz, 6H), 1.26 (s, 3H), 1.93 (m, 1H), 2.26 (s, 2H), 2.26 (AB system, J=16Hz, 2H), 4.23 (broad s, OH), 5.00 (dd, - J=11Hz, J=2Hz, 1H), 5.20 (dd, J=18Hz, J=2Hz, 1H), 5.95 (dd, - J=18Hz, J=11Hz, 1H).
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• Sook Park , Oee and Maldonado , L. A. acknowledge Cámara Nacional de la Industria de Laboratorios Químico Farmacéuticos for partial support of their work.
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