Results 201 to 210 of about 32,724 (242)

(–)‐Methyl Cucurbate and (–)‐Methyl Jasmonate by Kinetic Resolution

Liebigs Annalen, 1996
AbstractThe kinetic resolution of a malonate‐substituted cyclopentenone gave rise to the formation of an enantiopure Diels‐Alder adduct which was converted into methyl dehydrocucurbate 2 by diastereoselective alkylation with (Z)‐1‐bromo‐2‐pentene and subsequent borohydride reduction.
Claudia Borm, Ekkehard Winterfeldt
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An Expeditious Synthesis of Methyl Jasmonate

Helvetica Chimica Acta, 2006
AbstractWe present an efficient three‐step, two‐pot synthesis of methyl jasmonate (trans‐1) based on Diels–Alder cycloaddition of cyclopent‐2‐enone (2) and chloroprene (= 2‐chlorobuta‐1,3‐diene; 3d) in either CHCl3 or CH2Cl2, catalyzed by SnCl4 (0.2 mol‐equiv.) at 20° (75% yield).
Christian Chapuis, Carole Cantatore, Jean‐Yves de Saint Laumer   +2 more
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Methyl jasmonate and bean leaf abscission

Plant Growth Regulation, 1994
The effect of rac-methyl jasmonate, both in solution and as a vapour, on the separation of pulvinar and petiolar tissues in explants containing the distal abscission zone of primary leaves of Phaseolus vulgaris var. Contender was investigated. The effects of rac-methyl jasmonate were compared to those of (±)-abscisic acid, α-naphthalene acetic acid ...
Sara Jane Hall, Roger F. Horton
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An Efficient Synthesis of Methyl (±)‐Jasmonate and (Z)‐Jasmone

Helvetica Chimica Acta, 1978
AbstractAn efficient synthesis of methyl (±)‐jasmonate and (Z)‐jasmone is described. The Key step is a phase‐transfer reaction between cyclopentane (9) and 1, 4‐dibromo‐2‐pentene (6a/b) to give the spiro [2.4]hepten‐4‐ones 4a and 4b.
Ferdinand Näf, René Decorzant
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ChemInform Abstract: AN EFFICIENT SYNTHESIS OF METHYL (.+‐.)‐JASMONATE AND CIS‐JASMONE

Chemischer Informationsdienst, 1979
AbstractDie für die Synthese der Titelverbindungen (V) und (VI) benötigten Spiroheptenone (III) (1:4‐Isc merengemisch) werden aus Cyclopentanon (I) und den isomeren Dibromiden (II) dargestellt (Mechanismus).
F. NAEF, R. DECORZANT
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Antinociceptive effects of methyl jasmonate in experimental animals

Journal of Natural Medicines, 2011
Methyl jasmonate (MJ) is a chemical compound that has been postulated to play a role in plant wound and pathogen responses. While the anti-inflammatory property of MJ has been reported in literature, no studies have been carried out to describe its role in the modulation of pain.
Solomon, Umukoro, Abimbola S, Olugbemide
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Methyl Jasmonate Reduces Water Stress in Strawberry

Journal of Plant Growth Regulation, 1999
The effect of methyl jasmonate (MJ) on changes of oxygen-scavenging enzyme activities and membrane lipid composition was studied in strawberry leaves under water stress. Under water stress, MJ treatment reduced the increase of peroxidase (EC 1.11.1.7; POD) activity, maintained higher catalase (EC 1.11.1.6; CAT) and superoxide dismutase (EC 1.15.1.1 ...
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Optical Isomers of Methyl Jasmonate in Tea Aroma

Bioscience, Biotechnology, and Biochemistry, 1996
Two epimers of methyl jasmonate were optically resolved by capillary gas chromatography, using heptakis (2,3,6-tri-O-methyl)-β-cyclodextrin as the chiral stationary phase. In the tea volatile concentrates, both of these epimers were present as only one enantiomer, their absolute configurations being ascertained as (-)-(1R,2R)-methyl jasmonate and ...
D, Wang, K, Kubota, A, Kobayashi
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The absolute configuration of methyl jasmonate

Tetrahedron, 1965
Abstract The absolute configuration of the jasmine oil constituent methyl jasmonate has been determined. Methyl dihydrojasmonate was synthesized from (−) 3-oxocyclopentaneacetic acid, whose configuration was established by three independent methods: (a) ORD comparison with 3-methylcyclopentanone, (b) synthesis from optically active norcamphor, and (c)
R.K. Hill, A.G. Edwards
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Bidirectionalization of a methyl jasmonate-inducible plant promoter

Biotechnology Letters, 2010
A unidirectional promoter can be transformed into a bidirectional module by artificial methods. Here we report the bidirectionalization of the methyl jasmonate (MeJA)-inducible PtDrl02 promoter derived from poplar [(Populus tomentosa × P. bolleana) × P. tomentosa] in planta.
Huiquan, Zheng, Yang, Lei, Shanzhi, Lin, Qian, Zhang, Zhiyi, Zhang   +4 more
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