564-94-3Relevant articles and documents
Aspect Cinetique des Substitutions Homolytiques Intramoleculaires. Decomposition de Peroxydes Insatures Derives du Pinane
Montaudon, Evelyne,Bourgeois, Marie-Josephe
, p. 9335 - 9342 (1994)
The decomposition, in dichloromethane, of β- and γ-unsaturated peroxides derived from pinane leads to transient tertiary pinanyl adduct radicals.The evolution of the reaction depends on the position of the insaturation.An intramolecular homolytic substitution gives functional pinanic epoxides in the first case; a β-scission followed by a hydrogen transfer yields functional p-menthenic peroxides in the second case.
Synthesis of Myrtenal-Based Nanocellulose/Diacylhydrazine Complexes with Antifungal Activity for Plant Protection
Cen, Bo,Duan, Wengui,Li, Baoyu,Lin, Guishan,Wang, Xiaoyu
, p. 12956 - 12965 (2021/11/17)
In search of novel bioactive compounds with excellent and broad-spectrum antifungal activity and nanopesticides with sustained releasing property, a series of novel myrtenal-based diacylhydrazines were designed, synthesized, and characterized. The preliminary bioassay showed that myrtenal-based 2-picolinyl hydrazide exhibited better or comparable antifungal activity than that of the commercial fungicides boscalid and chlorothalonil against the tested fungi. Furthermore, myrtenal-based nanocellulose was designed as a nanopesticide carrier and prepared from two biomass materials, bleached bagasse pulp and turpentine oil. Drug-loading capacities (LCs) of these carriers and sustained releasing properties of corresponding complexes were also evaluated, and the results indicated that the esterification reaction in the different solvents would affect the micromorphology of carriers, which was the important influential factor for loading or releasing drugs. To our delight, complex VIII-3 (LC = 0.32, total releasing amount/time = 99.8%/168 h) showed a macroporous framework with the drug evenly distributed across the opening network and staged drug-releasing performance that deserved further study as a nanopesticide.
Asymmetric Synthesis of Oxygenated Monoterpenoids of Importance for Bark Beetle Ecology
Ganji, Suresh,Svensson, Fredric G.,Unelius, C. Rikard
, p. 3332 - 3337 (2020/11/30)
Herein we report the asymmetric syntheses of a number of oxygenated terpenoids that are of importance in the chemical ecology of bark beetles. These are pinocamphones, isopinocamphones, pinocarvones, and 4-thujanols (= sabinene hydrates). The camphones were synthesized from isopinocampheol, the pinocarvones from β-pinene, and the thujanols from sabinene. The NMR spectroscopic data, specific rotations, and elution orders of their stereoisomers on a chiral GC-phase (β-cyclodextrin) are also reported. This enables facile synthesis of pure compounds for biological activity studies and identification of stereoisomers in mixed natural samples.
