72937-55-4Relevant academic research and scientific papers
New Cadinene and Bisabolene Derivatives from the Essential Oil of Pulicaria gnaphalodes
Weyerstahl, Peter,Wahlburg, Hans-Christian,Marschall, Helga,Rustaiyan, Abdolhossein
, p. 1117 - 1124 (2007/10/02)
From the essential oil of Pulicaria gnaphalodes growing near Tehran some new cadinene derivatives were isolated.The structures of 1,8-oxidocadin-4-enes (6, 7, epimers at C-10), 1(10),4-cadinadien-8α-ol (1), 4,10(14)-cadinadien- and 4, 10(14)-muuroldaien-8-ols (2-5) could be verified by their 1H- and 13C-NMR spectra.Furthermore, the 8α-epimer 9 of the known α-copaen-8β-ol (10), (Z)-γ-curcumen-12-ol (13a) and the esters (Z)-13b-e could be identified.Key Words: Pulicaria gnaphalodes / Compositae / 1,8-Oxidocadin-4-ene / Cadinadien-8-ols / α-Copaen-8-ol / γ-Curcumen-12-ol
Reaction of 2-Hydroxy-2-methyl-6-(p-tolyl)heptane with Polyphosphoric Acid : Synthesis of ar-Curcumene, cis-Calamenene and ar-Himachalene
Pedneker, P. R.,Chakravarti, K. K.,Paknikar, S. K.
, p. 607 - 608 (2007/10/02)
The reaction of 2-hydroxy-2-methyl-6-(p-tolyl)heptane (11) with polyphosphoric acid yields sesquiterpene hydrocarbons, ar-curcumene (13), cis-calamenene (5) and ar-himachalene (12).
