For the accurate and sensitive quantitation of the off-flavor compound geosmin, particularly in complex matrices, a stable isotopologue as internal standard is highly advantageous. In this work, we present a versatile synthetic strategy leading from (4aR)-1,4a-dimethyl-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one to tri-deuterated (-)-geosmin ((4S,4aS,8aR)-4,8a-dimethyl(3,3,4-2 H3 )octahydronaphthalen-4a(2H)-ol)
对于异味化合物土臭素的准确和灵敏定量,特别是在复杂基质中,将稳定的同位素体作为内标是非常有利的。在这项工作中,我们提出了一种通用的合成策略,从 (4aR)-1,4a-dimethyl-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one 到 tri-deuterated (-)-土臭素((4S,4aS,8aR)-4,8a-二甲基(3,3,4-2 H3 )八氢
萘-4a(2H)-醇)。使用先前公布的程序,可以很容易地从廉价的 2-methylcyclohexan-1-one 获得起始材料。