82538-84-9Relevant articles and documents
Ionic-liquid-stabilized rhodium nanoparticles for citral cyclodehydration
Quek, Xian-Yang,Guan, Yejun,Van-Santen, Rutger A.,Hensen, Emiel J. M.
, p. 1264 - 1267 (2010)
Smells nice, too: The cyclodehydration of citral is achieved by using rhodium nanoparticles dispersed in an imidazolium-based ionic liquid. p-Cymene, p-α-dimethylstyrene, and limonene are obtained with selectivity greater than 75-%. The interaction between the imidazolium cations and the metal nanoparticles results in an acidic catalyst, which plays a similar function as a mineral acid but has a one order of magnitude higher activity.
Base-catalysed rearrangement of p-menth-1-en-4(8)-oxide
Roy, Animesh,Gurudutt, K. N.,Rao, Sanjay
, p. 636 - 638 (2007/10/03)
p-Menth-1-en-4(8)-oxide (1), a tetrasubstituted spiro epoxide is normally resistant towards bases but under forcing condition with AIP rearranges to p-mentha-1,8-dien-4-ol (2).On the other hand, with t-BuOK, p-mentha-1,3-dien-8-ol (3) and p-mentha-1,4-dien-8-ol (4) are formed as the major products.These compounds readily get oxidised to p-cymen-8-ol (5), as seen in the reaction of 1 with N-LiEDA.
Relationship between Acid-catalyzed Cyclization of Citral and Deterioration of Lemon Flavor
Kimura, Keiko,Iwata, Ihei,Nishimura, Hiroyuki
, p. 1387 - 1390 (2007/10/02)
-