72445-42-2Relevant academic research and scientific papers
The role of germacrene D as a precursor in sesquiterpene biosynthesis: Investigations of acid catalyzed, photochemically and thermally induced rearrangements
Buelow, Nils,Koenig, Wilfried A
, p. 141 - 168 (2007/10/03)
Germacrene D is considered as a precursor of many sesquiterpene hydrocarbons. We have investigated the acid catalyzed as well as the photochemically and thermally induced rearrangement processes of germacrene D isolated from several Solidago species, which contain both enantiomers of germacrene D. Enantiomeric mixtures of sesquiterpenes of the cadinane, eudesmane (selinane), oppositane, axane, isodaucane, and bourbonane group as well as isogermacrene D were identified as main products and made available as reference compounds for structure investigations and stereochemical assignments of plant constituents. δ-Amorphene, one of the rearrangement products, was identified as a natural product for the first time. The absolute configuration of γ-amorphene was revised by correlation with the absolute configuration of germacrene D. The mechanisms of the rearrangement reactions are discussed. (C) 2000 Elsevier Science Ltd.
CONFORMATIONAL CONTROL OF ENOLATE GEOMETRY: A SHORT SYNTHESIS OF GERMACRENE-D
Schreiber, Stuart L.,Hawley, Ronald C.
, p. 5971 - 5974 (2007/10/02)
A synthesis of (+/-)-germacrene-D is reported that employs a site- and stereoselective enolization of a conformationally biased ten-membered ring ketone.
Synthesis and Distribution of (-)-Mintsulfide, a Novel Sulfur-containing Sesquiterpene
Takahashi, Katsuhiro,Muraki, Shigeru,Yoshida, Toshio
, p. 129 - 132 (2007/10/02)
(-)-Mintsulfide , a new sulfur-containing sesquiterpene found in peppermint oil, was synthesized from (-)-germacrene-D by a photochemical reaction and was confirmed to be (1R)-cis-2,6-epithio-cis-8-isopropyl-1-methyl-5-methylene-cis-bicyclo--decane.The existence of 1 was confirmed in 13 of 74 essential oils analyzed.
Sulphide Extrusion from Methyl Sulphonium Salts of the Sulphur-bridged Sesquiterpenes, Mintsulphide and Isomintsulphide by Alkyl-lithium
Uyehara, Tadao,Ohnuma, Toshio,Saito, Takashi,Kato, Tadahiro,Yoshida, Toshoi,Takahashi, Katsuhiro
, p. 127 - 128 (2007/10/02)
Reaction of the methylsulphonium salts of mintsulphide (1) and isomintsulphide (2) with methyllithium gives the desulphurization products, via the biradical intermediates, and the sigmatropic rearrangement products.
