68178-48-3

Upstream product

• 104-92-7 1-bromo-4-methoxy-benzene 
• 110-93-0 6-Methyl-hept-5-en-2-on 

Downstream Products

• 100572-93-8 (E,Z)-4-(1,5-Dimethyl-4-hexenyliden)-1-methyl-2-cyclohexen-1-ol 
• 100572-85-8 (E,Z)-4-(1,5-Dimethyl-4-hexenyliden)-2-cyclohexen-1-on 
• 100572-84-7 2-(4-Methoxy-1,4-cyclohexadien-1-yl)-6-methyl-5-hepten-2-ol 
• 100572-91-6 (E,Z)-4-(1,5-Dimethyl-1,4-hexadienyl)-1-methoxybenzol 
• 100572-79-0 1-Methoxy-4-(5-methyl-1-methylen-4-hexenyl)benzol 
• 100572-81-4 rac-(1,5-Dimethyl-4-hexenyl)-1-cyclohexen 
• 100572-82-5 1-(1,5-dimethyl-4-hexenyl)-4-methoxy-1,4-cyclohexadiene 
• 100572-83-6 4-(1,5-dimethyl-4-hexenyl)-3-cyclohexen-1-one 

Relevant academic research and scientific papers

Terpenes and Terpene Derivatives, XVIII. - Concerning the Preparation of rac-γ-Curcumene

Preparation of pure γ-curcumene (3) described by Birch in 1949 via dehydratization of the alcohol 5 with SOCl2/pyridine was not reproducible.Mixtures of α-, β-, and γ-curcumene (1-3) were obtained even with POCl3/pyridine or Burgess reagent.Analogously the secondary alcohol 20 yielded mixtures of 3 and the 1,3-dienes 21 and (presumably) 22. - Li/NH3 reduction of the tert. benzyl alcohol 8 afforded after work-up directly the dienone 15 which with MeLi gave the dehydro derivative 16 of zingiberenol (17).