The present invention generally relates to methods of inhibiting ethylene responses in plants and plant materials, and particularly relates to methods of inhibiting various ethylene responses including plant maturation and degradation, by exposing plants to cyclopropene derivatives and compositions thereof wherein: 1) at least one substituent on the cyclopropene ring contains a carbocyclic or heterocyclic ring, or 2) . a substituent contains silicon, sulfur, phosphorous, or boron, or 3) least one substituent contains from one to four non-hydrogen atoms and at least one substituent contains more than four non-hydrogen atoms.
Synthesis of functionalised N-heterocyclic carbene ligands bearing a long spacer and their use in olefin metathesis
作者:Wioletta Kośnik、Karol Grela
DOI:10.1039/c3dt33010a
日期:——
ligand precursors has been developed. These tagged NHC ligands can be used to obtain a homogeneous Hoveyda-type catalyst (19) containing a quaternaryammonium group on a C-8 long spacer. Products of olefinmetathesis reactions promoted by complex 19 can be readily purified from Ru-residues by filtration of the reaction mixture through a small amount of silica gel.
Synthesis and physiological activities of both enantiomers of coriolic acid and their geometric isomers
作者:Yuichi Kobayashi、Sentaro Okamoto、Toshiyuki Shimazaki、Yoshinori Ochiai、Fumie Sato
DOI:10.1016/s0040-4039(00)96431-1
日期:1987.1
Both enantiomers of coriolic acid and their geometricisomers are synthesized highly selectively. These acids are found to exhibit similar inhibition activity toward spore germination of rice blast fungus.
Synthesis of linoleic acids combinatorially labeled at the vinylic positions as substrates for lipoxygenases
作者:Matthew P. Meyer、Judith P. Klinman
DOI:10.1016/j.tetlet.2008.04.023
日期:2008.5
inflammation-related human diseases. Soybeanlipoxygenase-1 is the archetypical example of known lipoxygenases. Here we report the synthesis of linoleicacid and (11,11)-d2-linoleic acid which are combinatorially labeled at the vinylic positions (9, 10, 12, and 13). Combinatorial labeling schemes allow for the simultaneous determination of KIEs in enzymatic reactions using NMR. Substrates are, thus, available
The present invention generally relates to methods of inhibiting ethylene responses in plants and plant materials, and particularly relates to methods of inhibiting various ethylene responses including plant maturation and degradation, by exposing plants to cyclopropene derivatives and compositions thereof wherein: 1) at least one substituent on the cyclopropene ring contains a carbocyclic or heterocyclic ring, or 2) a substituent contains silicon, sulfur, phosphorous, or boron, or 3) least one substituent contains from one to four non-hydrogen atoms and at least one substituent contains more than four non-hydrogen atoms.