cas 709-98-8, Propanil | Articles data

Articles about 709-98-8Total 23 be found

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Method for efficiently preparing 3, 4-dichlorophenyl propanamide
The invention discloses a method for efficiently preparing 3, 4-dichlorophenyl propionamide, which is characterized in that 3, 4-dichloroaniline, propionic acid and propionic anhydride are used as raw materials and are subjected to condensation reaction in the presence of a catalyst to synthesize the 3, 4-dichlorophenyl propionamide. The propionic anhydride is added into the raw materials and can react with water formed by reaction to form propionic acid, the effect of a dehydrating agent is achieved, the reaction speed is increased, the condensation time is shortened to 3-3.5 h, the production efficiency is greatly improved, the dehydration step after the condensation reaction is omitted, the technological process is simplified, and the cost and energy consumption are reduced. The water content of the propionic acid recovered after the condensation reaction is below 0.3%, the propionic acid can be directly applied without treatment, the reaction is still normally carried out after the propionic acid is applied, and the product is qualified. The method does not use a phosphorus-containing catalyst, does not generate three wastes, and is more in line with the construction of green chemical industry.
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Paragraph 0024-0040

(2021/09/21)

Intermediate formation enabled regioselective access to amide in the Pd-catalyzed reductive aminocarbonylation of olefin with nitroarene
An efficient route for the palladium-catalyzed reductive aminocarbonylation of olefins with nitroarenes was developed using carbon monoxide (CO) as both reductant and carbonyl source, which enables facile access to amides with excellent regioselectivity a
Li, Fuwei,Shi, Lijun,Xia, Chungu,Yang, Li
p. 1152 - 1160
(2020/03/13)

Synthesis method of propanil
The invention discloses a synthesis method of propanil. The synthesis method comprises the following steps: firstly performing an acylation reaction on chlorobenzene as a raw material and propionyl chloride to produce p-chloropropiophenone, then performing a condensation reaction on the p-chloropropiophenone and hydroxylamine hydrochloride to produce 1-(4-chlorophenyl)-1-acetoxime, then rearranging the 1-(4-chlorophenyl)-1-acetoxime under an acidic condition, and finally chlorinating to obtain the propanil. By the synthesis method, the reaction selectivity in each step is relatively high, no obvious side reaction occurs and the reaction conversion rate is high, so that the reaction yield is high and the product purity is high; a reaction condition is mild; the raw material cost is low; a requirement on reaction equipment is low; phosphorus-containing wastewater discharge is avoided; extension and tolerance are strong; the conversion success rate from trial production to large-scale production is high, and even if the reaction is interrupted, the trial production can be continued in the later stage; and therefore, the synthesis method is suitable for industrial mass production.
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Paragraph 0021; 0025; 0029; 0037

(2018/11/22)

NOXIOUS ARTHROPOD CONTROL AGENT CONTAINING AMIDE COMPOUND
An object of the present invention is to provide a compound having the controlling activity on a noxious arthropod, and a noxious arthropod controlling agent containing an amide compound of formula (I): wherein X represents a nitrogen atom or a CH group, p represents 0 or 1, A represents a tetrahydrofuranyl group or the like, R1, R2, R3, R4, R5, R6 and R7 represent a hydrogen atom or the like, n represents 1 or 2, Y represents an oxygen atom or the like, m represents any integer of 0 to 7, and Q represents a C1-8 chain hydrocarbon group optionally having a phenyl group or the like, has the excellent noxious arthropod controlling effect.
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(2017/08/26)

Palladium-catalyzed hydroaminocarbonylation of alkenes with amines promoted by weak acid
The weak acid has been identified as an efficient basicity-mask to overcome the basicity barrier imparted by aliphatic amines in the Pd-catalyzed hydroaminocarbonylation, which enables both aromatic and aliphatic amines to be applicable in the palladium-catalyzed hydroaminocarbonylation reaction. Notably, by using this protocol, the marketed herbicide of Propanil and drug of Fentanyl could be easily obtained in a one-pot manner.
Zhang, Guoying,Ji, Xiaolei,Yu, Hui,Yang, Lei,Jiao, Peng,Huang, Hanmin
supporting information
p. 383 - 386
(2016/01/12)

Reductive acylation of nitroarenes to anilides by sodium sulfite in carboxylic acids
A facile and efficient reductive acylation of aromatic nitro compounds to corresponding anilides using a sodium sulfite-carboxylic acid system for the first time has been reported. The sodium sulfite reagent provides the colorless reductant in combination with stoichiometric amounts of carboxylic acid and enables the formation of anilides from nitroarenes without any additives in good to excellent yields with high purities and simple work-up. Furthermore, this protocol provides a novel and complementary access to some industrially important chemicals in kilogram scale under mild conditions.
Ghaffarzadeh, Mohammad,Akhavan, Pegah
supporting information
p. 1417 - 1419
(2016/09/28)

BONE CEMENT FORMULA AND BIORESORBABLE HARDENED BONE CEMENT COMPOSITES PREPARED WITH THE SAME
The present invention provides a bone cement formula having a powder component and a setting liquid component, wherein the powder component includes a calcium sulfate source and a calcium phosphate source with a weight ratio of the calcium sulfate source less than 65%, based on the total weight of the calcium sulfate source and the calcium phosphate source, and the setting liquid component comprises ammonium ion (NH4+) in a concentration of about 0.5 M to 4 M, wherein the calcium phosphate source includes tetracalcium phosphate (TTCP) and dicalcium phosphate in a molar ratio of TTCP to dicalcium phosphate of about 0.5 to about 2.5, and the calcium sulfate source is calcium sulfate hemihydrate (CSH), calcium sulfate dehydrate (CSD), or anhydrous calcium sulfate.
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(2012/04/23)

REACTIVE FLAME RETARDANT AND FLAME-RETARDANT RESIN PROCESSED ARTICLE
Disclosed is a reactive flame retardant which provides a resin with excellent flame retardance even when it is added in a small amount while being prevented from bleedout. Also disclosed is a flame-retardant resin processed article obtained by using such a reactive flame retardant. An organophosphorus compound represented by the general formula (I) below, wherein at least one or more of X1-X3 represent a group containing phosphorus and having a terminal unsaturated group, is used as a reactive flame retardant which is reactive with resins. A flame-retardant resin processed article can be obtained by solidifying the resin composition containing the organophosphorus compound and then reacting it through heating or application of radiation.
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(2009/03/07)

A novel synthesis of N-arylamides from nitroarenes via reductive N-acylation with red phosphorus and iodine
A series of N-arylamides and imides were synthesized via reductive N-acylation of nitroarenes with red phosphorus and carboxylic acids, catalyzed by iodine or iodides; an I /I° redox cycle was proposed to promote the reaction. Georg Thieme Verlag Stuttgart.
Du, Xiaohua,Zheng, Mei,Chen, Sheng,Xu, Zhenyuan
p. 1953 - 1955
(2008/02/08)

Solid mixtures based on sulfonylureas and adjuvants
Solid mixtures comprising a) an active compound from the group consisting of the sulfonylureas, and b) an alkylpolyglucoside.
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(2008/06/13)

Herbicidal mixtures having a synergistic effect
PCT No. PCT/EP96/03996 Sec. 371 Date Feb. 17, 1998 Sec. 102(e) Date Feb. 17, 1998 PCT Filed Sep. 12, 1996 PCT Pub. No. WO97/10714 PCT Pub. Date Mar. 27, 1997A composition comprising at least one sulfonylurea of the formula I wherein R1 is substituted alkyl; halogen; a group ER6 (E=O, S or NR7); COOR8; NO2; S(O)oR9; SO2NR10R11; or CONR10R11; R2 is hydrogen, alkyl, alkenyl, alkynyl, halogen, alkoxy, haloalkoxy, haloalkyl, alkylsulfonyl, nitro, cyano or alkylthio; R3 is F, CF3, CF2Cl, CF2H, OCF3, OCF2Cl, or, if R1 is CO2CH3 and R2 is simultaneously fluorine, R3 is Cl, or, if R1 is CH2CF3 or CF2CF3, R3 is methyl, or, if R4 is OCF3 or OCF2Cl, R3 is OCF2H or OCF2Br; R4 is alkoxy, alkyl, alkylthio, alkylamino, dialkylamino, halogen, haloalkyl or haloalkoxy; and R5 is hydrogen, alkoxy or alkyl; or an enviromentally compatible salt of I, and an aryloxyalkanoic acid selected from the group consisting of 2,4-D, 2,4-DB, clomeprop, dichlorprop, dichlorprop-P, dichlorprop-P (2,4-DP-P), fenoprop (2,4,5-TP), fluoroxypyr, MCPA, MCPB, mecoprop, mecoprop-P, napropamide, napropanilide, triclopyr, and an enviromentally compatible salt thereof exhibits a synergistic herbicidal effect.
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(2008/06/13)

Synergistic herbicidal mixtures containing cyclohexenone oxime ethers
PCT No. PCT/EP96/04000 Sec. 371 Date Mar. 17, 1998 Sec. 102(e) Date Mar. 17, 1998 PCT Filed Sep. 12, 1996 PCT Pub. No. WO97/10710 PCT Pub. Date Mar. 27, 1997Herbicidal compositions containing a) at least one cyclohexenone oxime ether of the formula I and b) at least one of the following 44 compounds: b1) bromobutide, dimepiperate, etobenzanid, propanil, b2) anilofos, mefenacet, b3) 2,4-D, MCPB, naproanilide, b4) bentazone, b5) pyrazolynate/pyrazolate, sulcotrione, b6) esprocarb, molinate, pyributicarb, thiobencarb/benthiocarb, b7) quinclorac, b8) butachlor, butenachlor, pretilachlor, thenylchlor, b9) cycloxydim, sethoxydim, b10) pendimethalin, b11) cyhalofop-butyl, fenoxaprop-ethyl, b12) benzofenap, pyrazoxyfen, b13) dithiopyr, b14) sodium 2,6-bis[(4,6-dimethoxypyrimidin-2-yl)oxy]-benzoate and methyl 2-[(4,6-dimethoxypyrimidin-2-yl)-oxy]-6-[1-(methoxyimino)ethyl]benzoate; b15) azimsulfuron, bensulfuron-methyl, cinosulfuron, cyclosulfamuron, ethoxysulfuron, imazosulfuron, pyrazosulfuron-ethyl, b16) dimethametryn, simetryn/simetryne, b17) benfuresate, b18) cafenstrole, b19) cinmethylin, b20) piperophos, are described.
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(2008/06/13)

Development of a process for triazine-promoted amidation of carboxylic acids
A process has been developed for the triazine-promoted amidation of carboxylic acids. We have identified 2,4,6-trichloro-1,3,5-triazine (cyanuric chloride) as a cost-effective reagent for this transformation. The procedure is a suitable alternative to traditional amidation processes when an acid chloride cannot be prepared from the corresponding carboxylic acid due to safety, stability, or handling concerns.
Rayle, Heather L.,Fellmeth, Lisa
p. 172 - 176
(2013/09/08)

Oxidation of dichloroanilines and related anilides catalyzed by iron(III) tetrasulfonatophthalocyanine
We investigated the degradation of polychlorinated pollutants, such as dichloroanilines and related anilides, catalyzed by iron(III) tetrasulfonatophthalocyanine (FePcS) with potassium monopersulfate or hydrogen peroxide as oxidant. The reaction is influenced by the positions of the two chloro-substituents and by the nature of the oxidant. The FePcS- catalyzed oxidation of 3,5-dichloroaniline with potassium monopersulfate leads to the formation of more biodegradable products (carboxylic acids) and to potentially toxic dimers (azo and azoxy compounds). The oxidation of 3,4- dichloroaniline by FePcS/H2O2 converts this pollutant into coupling products. The formation of dimers in the catalytic oxidation of dichloroanilines can be avoided by acylation of the amine function.
Hadasch, Anke,Meunier, Bernard
p. 2319 - 2325
(2007/10/03)

Halopyridyl triazolinone herbicides and herbicidal use thereof
Disclosed are herbicidal halopyridyl triazolinones, herbicidal compositions comprising the halopyridyl triazolinones, and herbicidal use of the compounds and compositions. Such compounds and compositions are useful as both preemergence and postemergence herbicides in a variety of crops.
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(2008/06/13)

Substituted pyridinesulfonamide compound or its salt, process for preparing the same, and herbicide containing the same
A substituted pyridinesulfonamide compound or its salt represented by the following general formula (I): STR1 wherein A is CH or N; when A is CH, R1 and R2 may be either each independently a member selected from the group consisting of unsubstituted or substituted alkyl groups, unsubstituted or substituted alkenyl groups, unsubstituted or substituted cycloalkyl groups, and unsubstituted or substituted phenyl groups; when A is N, R1 is an unsubstituted or substituted alkyl group, R2 is an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups, is disclosed. This compound is useful as the effective ingredient of a herbicide showing a wide weed-control spectrum even if used in a small amount.
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(2008/06/13)

Substituted pyridinesulfonamide compounds or their salts, process for preparing the same, and herbicides containing the same
A substituted pyridinesulfonamide compound or its salt represented by the following general formula (I): wherein R1 is an unsubstituted or substituted alkyl group; R2 is an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups, is disclosed. This compound is useful as the effective ingredient of a herbicide showing a wide weed-control spectrum even if used in a small amount.
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(2008/06/13)

Novel chloroacetanilide derivatives and herbicides containing the same for use in paddy field
Disclosed herein are novel chloroacetanilide derivatives which act as remarkably effective herbicides when sprayed in a paddy field, the chloroacetanilide derivatives being 2',6'-diethyl-N-[(cis-alkenyloxy)methyl]-2-chloroacetanilides [A] represented by the general formula STR1 wherein R is a cis-form alkenyl group having 4 or 5 carbon atoms. Also disclosed are herbicide compositions for use in a paddy field and containing at least one of said chloroacetanilide derivatives [A] and at least one pyrazole derivative [B] represented by the general formula STR2 wherein R is a hydrogen atom or methyl group and X is a 4-toluenesulfonyl group or benzoylmethyl group; or-α-(2-naphtoxy)-propyonanilide [C] represented by the formula STR3
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(2008/06/13)

Synergistic composition and method for selective weed control in rice
Compositions that contain, in admixture with one another, as active ingredient, on the one hand N-[2-(2-methoxyethoxy)-phenylsulphonyl]-N'-(4,6-dimethoxy-1,3,5-triazin-2-yl)-urea of the formula STR1 and on the other hand one or two of the active ingredients of the formulae II, III, IV, V, VI, VII, VIII, IX, X, XI, XII, XIII, XIV and XV defined herein exhibit synergistic herbicidal action in rice.
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(2008/06/13)

Herbicidal sulfonamides
This invention relates to benzylsulfonylureas which are active pre- and post-emergence herbicides.
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(2008/06/13)

5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides
5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides of the formula STR1 where R1 is hydrogen, a metal atom or an unsubstituted or substituted ammonium radical, R2 is a saturated or unsaturated straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical or 3 to 7 carbon atoms, a branched saturated or unsaturated aliphatic radical of 3 to 10 carbon atoms, a halogen-, alkoxy- or alkylmercapto-substituted aliphatic radical of 2 to 10 carbon atoms tetrahydrofuryl substituted methyl, a cycloalkoxy-substituted aliphatic radical of 4 to 10 carbon atoms, unsubstituted or halogen-substituted benzyl or phenyl, halophenyl, or alkylphenyl of a total of up to 10 carbon atoms, R3 is hydrogen, a straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical of 3 to 7 carbon atoms, a branched aliphatic radical of 3 to 10 carbon atoms, haloalkyl, or alkoxyalkyl of 2 to 10 carbon atoms and X is oxygen and may also be sulfur if R2 is unsubstituted or halogen-substituted benzyl, processes for their preparation, and herbicides containing the above compounds.
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(2008/06/13)

Synergistic herbicidal compositions
Synergistic herbicidal activity is displayed by compositions comprising the following two components: (a) a pyrrolidone of the formula STR1 and (b) an acetanilide of the formula STR2 in which R1 is selected from the group consisting of hydrogen, C1 -C4 alkyl, and chlorine; R2 is selected from the group consisting of hydrogen, C2 -C6 alkoxyalkyl, and C3 -C6 carbalkoxyalkyl; R3 is selected from the group consisting of hydrogen, C1 -C4 alkyl, and chlorine; R4 is selected from the group consisting of hydrogen, C1 -C4 alkyl, and chlorine; and R5 is selected from the group consisting of hydrogen, C1 -C4 alkyl, chlorine, and --NHSO2 CF3, at a weight ratio of (a) to (b) of from about 0.1:1 to about 50:1.
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(2008/06/13)

Hill reaction inhibition and phytotoxicity of compounds related to 3,4-dichloroanilides
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Pagani,Baruffini,Borgna,Gialdi
p. 1019 - 1036
(2007/10/09)

Chemical Properties

Appearance/Colour :colorless to brown crystals
Melting Point: 92-93 ºC
Boiling Point: 369.9 ºC at 760 mmHg
Flash Point:177.5 ºC
Density: 1.338 g/cm³
Storage Temp.:0-6°C
Vapor Pressure: 1.15E-05mmHg at 25°C
Refractive Index: 1.589
PKA: 13.58±0.70(Predicted)
Merck: 13,7896
BRN: 2365645
PSA: 29.10000
LogP: 3.41490

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709-98-8

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Chemical Properties

Appearance/Colour :colorless to brown crystals

Melting Point: 92-93 ºC

Boiling Point: 369.9 ºC at 760 mmHg

Flash Point:177.5 ºC

Density: 1.338 g/cm³

Storage Temp.:0-6°C

Vapor Pressure: 1.15E-05mmHg at 25°C

Refractive Index: 1.589

PKA: 13.58±0.70(Predicted)

Merck: 13,7896

BRN: 2365645

PSA: 29.10000

LogP: 3.41490

Global suppliers and manufacturers of 709-98-8total 78 suppliers on LookChem

Article Database

709-98-8

Articles about 709-98-8Total 23 be found

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Chemical Properties

Appearance/Colour :colorless to brown crystals

Melting Point: 92-93 ºC

Boiling Point: 369.9 ºC at 760 mmHg

Flash Point:177.5 ºC

Density: 1.338 g/cm3

Storage Temp.:0-6°C

Vapor Pressure: 1.15E-05mmHg at 25°C

Refractive Index: 1.589

PKA: 13.58±0.70(Predicted)

Merck: 13,7896

BRN: 2365645

PSA: 29.10000

LogP: 3.41490

Global suppliers and manufacturers of 709-98-8total 78 suppliers on LookChem

Density: 1.338 g/cm³