ZA200505856B - Compositions with cyclopropenes and metal-complexing agents - Google Patents
Compositions with cyclopropenes and metal-complexing agents Download PDFInfo
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- ZA200505856B ZA200505856B ZA200505856A ZA200505856A ZA200505856B ZA 200505856 B ZA200505856 B ZA 200505856B ZA 200505856 A ZA200505856 A ZA 200505856A ZA 200505856 A ZA200505856 A ZA 200505856A ZA 200505856 B ZA200505856 B ZA 200505856B
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- composition
- metal
- water
- cyclopropenes
- cyclopropene
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims description 41
- 239000008139 complexing agent Substances 0.000 title claims description 17
- 150000001943 cyclopropenes Chemical class 0.000 title description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- OOXWYYGXTJLWHA-UHFFFAOYSA-N cyclopropene Chemical compound C1C=C1 OOXWYYGXTJLWHA-UHFFFAOYSA-N 0.000 claims description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 125000003342 alkenyl group Chemical group 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 4
- 125000000304 alkynyl group Chemical group 0.000 claims description 4
- 125000001316 cycloalkyl alkyl group Chemical group 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 125000001624 naphthyl group Chemical group 0.000 claims description 3
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 229920000858 Cyclodextrin Polymers 0.000 claims 2
- 238000005538 encapsulation Methods 0.000 claims 2
- 229940097362 cyclodextrins Drugs 0.000 claims 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical group O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims 1
- 239000002738 chelating agent Substances 0.000 description 15
- -1 1-ethylpropy 1 Chemical group 0.000 description 14
- 229910021645 metal ion Inorganic materials 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 125000004429 atom Chemical group 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 150000002923 oximes Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 125000006272 (C3-C7) cycloalkyl group Chemical group 0.000 description 1
- SHDPRTQPPWIEJG-UHFFFAOYSA-N 1-methylcyclopropene Chemical compound CC1=CC1 SHDPRTQPPWIEJG-UHFFFAOYSA-N 0.000 description 1
- TYFSYONDMQEGJK-UHFFFAOYSA-N 2-(2,2-dihydroxyethylamino)acetic acid Chemical compound OC(O)CNCC(O)=O TYFSYONDMQEGJK-UHFFFAOYSA-N 0.000 description 1
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical compound OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 description 1
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical class NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 description 1
- 125000004974 2-butenyl group Chemical group C(C=CC)* 0.000 description 1
- 125000006022 2-methyl-2-propenyl group Chemical group 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 125000001494 2-propynyl group Chemical group [H]C#CC([H])([H])* 0.000 description 1
- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- FSVCELGFZIQNCK-UHFFFAOYSA-N N,N-bis(2-hydroxyethyl)glycine Chemical compound OCCN(CCO)CC(O)=O FSVCELGFZIQNCK-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- 125000006615 aromatic heterocyclic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 150000003983 crown ethers Chemical class 0.000 description 1
- 125000004850 cyclobutylmethyl group Chemical group C1(CCC1)C* 0.000 description 1
- 125000004186 cyclopropylmethyl group Chemical group [H]C([H])(*)C1([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- JGUQDUKBUKFFRO-CIIODKQPSA-N dimethylglyoxime Chemical compound O/N=C(/C)\C(\C)=N\O JGUQDUKBUKFFRO-CIIODKQPSA-N 0.000 description 1
- ZDXLFJGIPWQALB-UHFFFAOYSA-M disodium;oxido(oxo)borane;chlorate Chemical compound [Na+].[Na+].[O-]B=O.[O-]Cl(=O)=O ZDXLFJGIPWQALB-UHFFFAOYSA-M 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 208000037824 growth disorder Diseases 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002678 macrocyclic compounds Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- JZRYQZJSTWVBBD-UHFFFAOYSA-N pentaporphyrin i Chemical class N1C(C=C2NC(=CC3=NC(=C4)C=C3)C=C2)=CC=C1C=C1C=CC4=N1 JZRYQZJSTWVBBD-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000008191 permeabilizing agent Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- ORIHZIZPTZTNCU-YVMONPNESA-N salicylaldoxime Chemical compound O\N=C/C1=CC=CC=C1O ORIHZIZPTZTNCU-YVMONPNESA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 230000036435 stunted growth Effects 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Description
SE AGUs tonne . A SREY
COMPOSITIONS WITH CYCLOPROPENES AND METAL-COMPLEXING=
AGENTS
Ethylene can cause the premature death of plants or plant parts including, for example, flowers, leaves, fruits, and vegetables through binding with certain recepteors in the plant. Ethylene also promotes leaf yellowing and stunted growth as well as premature fruit, flower, and leaf drop. Cyclopropenes (i.e., substituted and unsubstituted cyclopropene and its derivatives) are effective agents for blocking the effects of ethylene. Some useful methods of delivering cyclopropenes to plants or plant parts include Forming a mixture that includes one or more cyclopropenes and water. However, ina some of such mixtures, the activity of the cyclopropenes in thes mixture is reduced. US 2003/0224939 discloses the use of permeabilizing agents t-0 improve the permeability of the cell walls of plants to certain specific plant growth. regulators. It is desired to provide improved compositions that contain cycloprope nes and that improve the activity of cyclopropenes in mixtures that contain water and One or more such improved compositions; it is also desired to improve the effectiveness of blocking the effects of ethylene by cyclopropenes that are delivered to plants or plant parts by methods that use such compositions. ‘
In the present invention, there is provided a composition comprising : (a) one or more cyclopropenes of the formula
H
—
CHa wherein said R is hydrogen or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, phenyl, or naphthyl group; wherein the substituents, when present, are independently halogen, alkoxy, or substituted or unsubstituted phenoxy; and, (b) one or more Inetal-complexing agents.
Lo | 2OTZ 0m
As used herein, all percentages are percent by weight and all parts are parts by weight, unless otherwise specified, and are inclusive and combinable. All ratios are by weight and all ratio ranges are inclusive and combinable. All molar ranges are inclusive and combinab le.
As used herein, the term “alkyl” means straight chain, branched chaim , or cyclic (C;-Cyo) radicals which include, for example, methyl, ethyl, n-propyl, isopropyl, 1-ethylpropy 1, n-butyl, tert-butyl, isobutyl, 2,2-dimethylpropyl, pentyl, octyl, and decyl. The terms “alkenyl” and “alkynyl” mean (C3-Cz) alkenyl and (C;-
Cy) alkynyl groups such as, for example, 2-propenyl, 2-butenyl, 3-butenyl, 2-methyl- 2-propenyl, and 2-propynyl. The term “cycloalkylalkyl” means a (C;-C;s) alkyl group substituted with a (C3-C7) cycloalkyl group such as, for example cyclopropylmethyl, cyclopropylethyl, cyclobutylmethyl, and cyclopentyleth yl. The : term “haloalkyl” means an alkyl radical wherein one or more of the hydrogen atoms have been replaced by a halogen atom. The term “halogen” means one or more of fluorine, chlorine, bromine, and iodine.
The practice of the present invention involves the use of one or more cyclopropenes. As used herein, "cyclopropene" means any compound with the formula :
H
A
CHa where R is hydrogen o 1 a substituted or unsubstituted alkyl, alkenyl, alkyny~1, cycloalkyl, cycloalkylalkyl, phenyl, or naphthyl! group; wherein the substittients, when present, are independemtly halogen, alkoxy, or substituted or unsubstituted phenoxy.
As used herein, when the compound of the above structure when R is a hydrogen is meant, the phrase "unsubstituted cyclopropene” will be used.
In some embodiments, R has no double bond. Independently, in some =~ embodiments, R has n o triple bond. Independently, in some embodiments, there is no halogen atom substituent on R. Independently, in some embodiments, R has no substituents that are ionic. Independently, in some embodiments, R is not «capable-of generating oxygen cornpounds.
Co £00U5 050s
In some embeodiments of the invention, R is (C;-C)o) alkyl. In some embodiments, R is ( C;-Cg) alkyl, or (C;-C4) alkyl, or methyl. When R is methy], the cyclopropene is kno-wn herein as "1-MCP."
The cyclopropenes applicable to this invention are known materials, which may be prepared by any method. Some suitable methods of preparation of cyclopropenes are the processes disclosed in U. S. Patents No. 5,518,988 and 6,017,849.
The amount of cyclopropene in compositions of the present invention may vary widely, depencling on the type of composition and the intended method of use.
In some embodimemts, the amount of cyclopropene, based on the total weight of the composition, is 4% by weight or less; or 1% by weight or less; or 0.5% by we=ight or less; or 0.05% by wveight or less. Independently, in some embodiments, the armount of cyclopropene, based on the total weight of the composition, is 0.000001% b y weight or more; or 0.00001% by weight or more; or 0.0001% by weight or m ore; or 0.001% by weight ©r more.
Among embodiments in which the composition of the present inventioxl includes water, the amount of cyclopropene may, in some embodiments that imaclude water, be character_ized as parts per million (i.e., parts by weight of cyclopropesne per 1,000,000 parts by weight of water, "ppm") or as parts per billion (i.e., parts bxy weight of cyclopropene per 1,000,000,000 parts by weight of water, "ppb"). In some embodiments that include water, the amount of cyclopropene is 1 ppb or more=; or 10 ) ppb or more; or 100 ppb or more. Independently, in some embodiments that Anclude water, the amount of cyclopropene is 10,000 ppm or less; or 1,000 ppm or less.
The practice of the present invention involves the use of one or more rmetal- complexing agents. A metal-complexing agent is a compound that contains one or more electron-don or atoms capable of forming coordinate bonds with a metal atoms.
Some metal-compJexing agents are chelating agents. As used herein, a "chelating agent" is a compound that contains two or more electron-donor atoms that ares capable of forming coordirate bonds with a metal atom, and a single molecule of the chelating agent is capable of forming two or more coordinate bonds with a single metal. atom.
Suitable chelating agents include, for example, organic and inorganic chelatimg agents. Among thue suitable inorganic chelating agents are, for example, phosphates such as, for example, tetrasodium pyrophosphate, sodium tripolyphosphate, a.nd hexametaphospho-ric acid. Among the suitable organic chelating agents are those with
Co 20ubs 5356 macrocyclic structures and non-macrocyclic strukctures. Among the suitable macrocyclic organic chelating agents are, for example, porphine compounds, cyclic polyethers (also called crown ethers), and macrocyclic compounds with both nitrogen and oxygen atoms.
Some suitable organic chelating agents that have non-macrocyclic structures are, for example, aminocarboxylic acids, 1,3-diketones, hydroxycarboxylic acids, polyamines, aminoalcohols, aromatic heterocyclic bases, phenol, aminophenols, oximes, Shiff bases, sulfur compounds, and mix tures thereof. In some embodiments, the chelating agent includes one or more aminocarboxylic acids, one or more hydroxycarboxylic acids, one or more oximes, Or a mixture thereof. Some suitable aminocarboxylic acids include, for example, ethaylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEIDTA), nitrilotriacetic acid (NTA), N- dihydroxyethylglycine (2-HxG), ethylenebis(hy droxyphenylglycine) (EHPG), and mixtures thereof. Some suitable hydroxycarboxylic acids include, for example, tartaric acid, citric acid, gluconic acid, 5-sulfosLicylic acid, and mixtures thereof.
Some suitable oximes include, for example, dimethylglyoxime, salicylaldoxime, and mixtures thereof. In some embodiments, EDTA is used.
Some additional suitable chelating agen ts are polymeric. Some suitable : polymeric chelating agents include, for example, polyethyleneimines, polymethacryloylacetones, poly(acrylic acid), and poly(methacrylic acid).
Poly(acrylic acid) is used in some embodiments.
Some suitable metal-complexing agents that are not chelating agents are, for example, alkaline carbonates, such as, for example, sodium carbonate.
Metal-complexing agents may be presemt in neutral form or in the form of one 75 or more salts. Mixtures of suitable metal-complexing agents are also suitable.
In some embodiments, the composition of the present invention includes water. Independently, the composition of the present invention, whether or not it contains water, may, in some embodiments, be used in methods that include admixing the composition of the present invention with wvater. Whether the water is included in the composition of the present invention or the water is mixed with the composition of the present invention, the water that is used may suitably come from any source.
Suitable water may be, for example, purified ox unpurified. Suitable purified water may be, for example, deionized or distilled or both. Suitable unpurified water may be
SS 2005707005
SE 5 from any source, including, for example, municipal vwater supplies, wells, streams, other natural sources, irrigation ditches, or any combination thereof.
In some embodiments in which water is used. the water contains one or more metal ions, such as, for example, iron ions, copper ios, other metal ions, or mixtures thereof. In some embodiments, the water contains 0. 1 ppm or more of one or more metal ions.
While the present invention is not limited to any particular mechanism, it is " contemplated that metal ions, in some cases, interact with cyclopropene in a way that reduces the activity of cyclopropene. In such cases, tis further contemplated that a metal-complexing agent may interact with metal ion in a way the reduces the interaction between metal ion and cyclopropene, thuss preserving the activity of cyclopropene.
The amount of metal-complexing agent used in the present invention also may vary widely. In some embodiments, the amount of mnetal-complexing agent will be adjusted to be sufficient to complex the amount of metal ion that is present or expected to encounter. Metal-complexing agent might, for example, encounter metal ion in the composition of the present invention, in th_e admixture formed when the composition of the present invention is admixed with water, or both. For example, in some embodiments, if a relatively efficient chelatings agent is used as a metal- complexing agent (i.c., a chelating agent that will form a complex with all or nearly all the metal ions in the water), the ratio of moles of chelating agent to moles of metal jon will be 0.1 or greater; or 0.2 or greater; or 0.5 o-r greater; or 0.8 or greater.
Among such embodiments that use a relatively effic-ient chelating agent, the ratio of moles of chelating agent to moles of metal ion will bbe 2 or less; or 1.5 or less; or 1.1 or less.
Independently, in some embodiments, the ammount of metal-complexing agent is, based on the total weight of the composition, 25% by weight or less; or 10% by - weight or less; or 1% by weight or less. Independemtly, in some embodiments, the i amount of metal-complexing agent is, based on the ®otal weight of the composition, 0.00001% or more; or 0.0001% or more; or 0.01% or more.
Independently, in some of the embodiments in which the composition of the present invention includes water, the amount of met al-complexing agent can usefully be determined by the molar concentration of metal-ccomplexing agent in the water. In some embodiments, the concentration of metal-com_plexing agent is 0.00001 mM (i.e.,
Claims (8)
1. A composition comprising (a) one or more cyclopropen es of the formula = [ R—C
<l. wherein said R is hydrogen or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, cycl oalkylalkyl, phenyl, or naphthyl group; wherein the substituents, when present, are independently halogen, alkoxy, or substituted or unsubstituted phenoxy; and, (b) one or more metal-comprlexing agents.
2. The composition of claim 1, wherein said R is (C;-Cg)alkyl.
3. The composition of claim 1, wherein said R is methyl.
4. The composition of claim 1, wherein said one or more metal-complexing agents comprise one or more amino carboxylic acids.
5. The composition of claim 1, wherein said cyclopropene is encapsulated within a molecular encapsulation agent.
6. The composition of claim 5, wherein said molecular encapsulation agent is a cyclodextrin or a mixture of cyclodextrins.
7. The composition of claim 1, further comprising water.
8. A method comprising the step of contacting the composition of claim 1 to a plant or plant part. Dated this 21st day of July 2005 AE g g BOWMAN GILFILLAEN JOHN & KERNIC BE FOR THE APPLICANT
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200505856A ZA200505856B (en) | 2005-07-21 | 2005-07-21 | Compositions with cyclopropenes and metal-complexing agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200505856A ZA200505856B (en) | 2005-07-21 | 2005-07-21 | Compositions with cyclopropenes and metal-complexing agents |
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| Publication Number | Publication Date |
|---|---|
| ZA200505856B true ZA200505856B (en) | 2006-04-26 |
Family
ID=37983925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200505856A ZA200505856B (en) | 2005-07-21 | 2005-07-21 | Compositions with cyclopropenes and metal-complexing agents |
Country Status (1)
| Country | Link |
|---|---|
| ZA (1) | ZA200505856B (en) |
-
2005
- 2005-07-21 ZA ZA200505856A patent/ZA200505856B/en unknown
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