Domino-cyclisation and hydrogenation of citronellal to menthol over bifunctional Ni/Zr-Beta and Zr-beta/Ni-MCM-41 catalysts.
The one-pot conversion of (+/-)-citronellal to menthol can be selectively catalysed by either a bifunctional Ni/Zr-zeolite beta catalyst or a dual catalyst system of Zr-beta and Ni/MCM-41, giving a high diastereoselectivity to (+/-)-menthol of 90-94%.
Nie
Yuntong
Y
Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore117543.
Chuah
Gaik-Khuan
GK
Jaenicke
Stephan
S
D000080462:Acyclic Monoterpenes; D000447:Aldehydes / Q000737:chemistry*; D002384:Catalysis; D003500:Cyclization; D006865:Hydrogenation; D008610:Menthol / Q000737:chemistry*; D008956:Models, Chemical; D039821:Monoterpenes / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013237:Stereoisomerism; D013997:Time Factors; D015040:Zirconium / Q000737:chemistry*
D000080462:Acyclic Monoterpenes; D000447:Aldehydes; C509968:MCM-41; D039821:Monoterpenes; D009942:Organometallic Compounds; D008610:Menthol; D012822:Silicon Dioxide; D009532:Nickel; D015040:Zirconium; C108217:citronellal