82538-84-9Relevant academic research and scientific papers
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.
Asymmetric synthesis of trans-p-menth-3-ene-1,2,8-triol, the monoterpene isolated from herbal plants
Konishi, Shunsuke,Ogura, Yusuke,Takikawa, Hirosato,Watanabe, Hidenori
, p. 37 - 42 (2020)
The monoterpene, trans-p-menth-3-ene-1,2,8-triol, is a naturally occurring alcohol isolated from several herbal plants. In the present work, the asymmetric synthesis of both enantiomers of this natural product was achieved using Sharpless asymmetric dihydroxylation as the key step. A reversal of enantiofacial selectivity was observed in the asymmetric dihydroxylation.
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.
A SHORT AND EFFICIENT METHOD FOR THE PREPARATION OF α,p-DIMETHYLSTYRENE FROM CITRAL
Barton, Derek H. R.,Parekh, Shyamal I.
, p. 3353 - 3362 (2007/10/02)
Acid catalysed cyclization of citral to give α,p-dimethyl styrene using chloranil as an oxidizing agent is reported.The important aspect of this transformation is the dehydration of intermediate piperitenol followed by dehydrogenation to furnish the target compound in 80.5percent yield.
