| 摘要 |
<p>PURPOSE:To obtain alpha-thujene useful as a raw material for sabinene hydrate useful as a material for perfume, by isomerizing sabinene with an alkali metal and a primary or secondary amine in a specific blending ratio with suppressing side reactions. CONSTITUTION:In preparing alpha-thujene by isomerizing sabinene with an alkali metal such as metal lithium, etc. and a primary or secondary amine(preferably ethylenediamine), 1mol sabinene is reacted with 0.2-0.5mol, preferably 0.2- 0.3mol alkali metal and 0.3-0.8mol, preferably 0.4-0.6mol primary or secondary amine. Sabinene is preferably isomerized by using an alkali metal amide obtained by reacting previously the alkali metal with the primary or secondary amine by heating under an atmosphere of air or N2.</p> |
