ChemInform Abstract: PART I. DITERPENIC EPOXIDES: SYNTHESIS AND REACTIVITY OF EPOXIDES DERIVED FROM RESIN ACIDS

Abstract

Die Harzsäuren (I), (III), (V), (VII) und (IX) lassen sich nach A) zu trennbaren Gemischen entsprechender Epoxide oxidieren.

β-Stereospecific hydroboration of 13-epi-pimar-8(14)-enes

“…Elemental analyses were carried out on a Perkin-Elmer 2400 CHN elemental analyser. In the same way diene 2 (1.2 g, 3.6 mmol) was hydrogenated to give monoene 4 (1.2 g, 9973, and diene 11 (0.6 g, 1.9 mmol) gave monoene 12 14 Hydroboration (Temperature and Time as in Table 1 ).-(a) With 1 mol dm-, BH3*THF. * (Entry 1) BH,-THF (1 mol drn-,; 6 cm3) was added under N, at 0 "C to a solution of compound 3 (300 mg, 0.95 mmol) in T H F (13 cm3).…”