- A FUNGICIDAL COMPOUND AND PROCESS OF PREPARATION THEREOF
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The present invention relates to a fungicidal sulfenyl phthalimide compound of formula (I) and a compound of formula (II) wherein said compound of formula (I) and formula (II) are substantially free from unwanted impurity. Particularly the present invention relates to a process of preparation of compounds of formula (I) and (II) substantially free from unwanted impurity.
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Page/Page column 19-24
(2021/11/06)
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- Synthetic method of perchloromethyl mercaptan
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The invention discloses a synthetic method of perchloromethyl mercaptan. According to the synthetic method, trichloromethane and sulfur dichloride are used as reaction raw materials, and organic alkali is used as a catalyst and an acid-binding agent to prepare the perchloromethyl mercaptan. The method has the advantages of simple operation, strong operability, avoidance of the use of carbon disulfide and chlorine, effective solving of potential safety hazards caused by the use of carbon disulfide and chlorine and high safety; and the obtained perchloromethyl mercaptan appears to be yellow oilyliquid, has yield of 85% or above and density of 1.69 or above, meets use requirements, and presents industrial application value.
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Paragraph 0017-0028
(2020/09/09)
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- Radical Aromatic Trifluoromethylthiolation: Photoredox Catalysis vs. Base Mediation
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Trifluoromethyl aryl sulfides (Ar-SCF3) constitute highly attractive building blocks due to their exceptional lipophilicity and chemical properties. Related protocols of radical aromatic trifluoro-methylthiolation of arenediazonium salts were developed that are based on the facile generation of intermediate aryl radicals. Their reactions with commercial F3CS-SCF3 under very mild conditions afforded a diverse set of Ar-SCF3 (3]Cl2} with the weak base-mediated dark reaction documented higher synthetic efficiency of the former but higher operational simplicity of the latter strategy.
- Koziakov, Denis,Majek, Michal,Jacobi von Wangelin, Axel
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supporting information
p. 6722 - 6725
(2017/12/07)
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- One-Step Conversion of Methyl Ketones to Acyl Chlorides
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Treatment of aromatic and heteroaromatic methyl ketones with sulfur monochloride and catalytic amounts of pyridine in refluxing chlorobenzene leads to the formation of acyl chlorides. Both electron-rich and electron-poor aryl methyl ketones can be used as starting materials. The resulting C1-byproduct depends on the precise reaction conditions chosen.
- Zaragoza, Florencio
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p. 10370 - 10374
(2015/11/03)
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- PROCESS FOR SYNTHESIS FIPRONIL
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The present disclosure relates to a process for trifluoromethylsulfinyl pyrazole compound of formula I, from a compound of formula III, wherein, R, R1 and R2 represent a group containing halogen group respectively and R3 represents a perhaloalkyl.
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Paragraph 0073
(2013/03/26)
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- PROCESS FOR SYNTHESIS OF FIPRONIL
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A process for preparation of a trifluoromethylsulfinyl pyrazole compound of formula (I) from a compound of formula (III) is provided, wherein R, R1 and R2 represent a group containing halogen respectively and R3 represents a perhaloalkyl.
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Page/Page column 22-23
(2011/10/03)
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- MODULATORS OF MUSCARINIC RECEPTORS
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The present invention relates to modulators of muscarinic receptors. The present invention also provides compositions comprising such modulators, and methods therewith for treating muscarinic receptor mediated diseases.
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Page/Page column 44-45
(2008/06/13)
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- SPIRO CONDENSED PIPERIDNES AS MODULATORS OF MUSCARINIC RECEPTORS
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The present invention relates to modulators of muscarnic receptors of formula (I). The present invention also provides impositions comprising such modulators, and methods therewith for treating muscarinic receptor mediated diseases.
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Page/Page column 47
(2008/06/13)
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- Preparation of α, α-difluoroalkanesulfonic acids
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Chlorodifluoromethanesulfonic acid (1) was prepared using a new procedure starting from perchloromercaptan, which is readily obtained from chlorination of CS2. Modified Swarts reaction transformed N, N-diethyl trichloromethanesulfenamide into N, N-diethyl chlorodifluoromethanesulfenamide, and the latter species was further oxidized and hydrolyzed into chlorodifluoromethanesulfonic acid. The preparations of other two new α,α-difluoroalkanesulfonic acids, phenyl difluoromethanesulfonic acid (2) and 2-phenyl-1,1,2,2, -tetrafluoroethanesulfonic acid (3), are also disclosed. The acids 2 and 3 are stable in the forms of sodium (lithium) salts or in aqueous solutions; however, the pure forms of 2 and 3 can readily undergo defluorinations. 1-3 and their salts have potential applications as superacid catalysts and lithium battery electrolytes.
- Prakash, G.K. Surya,Hu, Jinbo,Simon, Jurgen,Bellew, Donald R.,Olah, George A.
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p. 595 - 601
(2007/10/03)
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- Organic Heterocyclothiazenes. Part 13. Rotational Synthesis and Chemistry of 1,3,5,2,4-Trithiadiazines
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1,3,5,2,4-Trithiadiazines, previously formed from tetrasulphur tetranitride and diazoalkanes, are synthesised from 1,1-bis-sulphenyl chlorides (1; R = H, Cl), (5), (11) and bis(trimethylsilyl)sulphurdiimide (2), and this reaction extends to trithiadiazines with functional groups on carbon.Bis-sulphenyl chlorides (5a-d) are formed in one step from malonic esters and amides and sulphur dichloride.Pentathiepane (lenthionine) (14), prepared from di-iodomethane and disodium disulphide, gives methanebis(sulphenyl chloride) on chlorinolysis and hence, with (2), the parenttrithiadiazine (3; R = H).Similarly the pentathiepane (16) is converted into bis-sulphenyl chloride (11) and the spirotrithiadiazine (12).The sensitivity of the heterocyclic ring towards strongly polar reagents precluded the generation of the trithiadiazine cation (17) and anion (19), but the radical (18) is formed on treatment with benzoyl peroxide and benzoyl t-butyl nitroxide (22), resulting in the benzoyloxy and amino-oxy derivatives (21) and (24). m-Chloroperbenzoic acid or nitrogen tetroxide convert trithiadiazine into the S-oxide (25).
- Bannister, Robin M.,Rees, Charles W.
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p. 509 - 514
(2007/10/02)
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- Methyl-halogenated Allyl Methyl Sulfoxides and Sulfones and the Synthesis of Halogenated Sulfines
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Allyl methyl sulfoxides R1R2R3C-S(O)-CH2CH=CH2 1a-7a (R1, R2, R3 = H, F, Cl, CF3) as well as the corresponding sulfones 1b-7b were synthesized.The sulfoxides substituted at the methyl group are in equilibrium with the allyl sulfenates R1R2R3-S-OCH2CH=CH2 depending on temperature and kind of substitution.By pyrolysis of the sulfoxides 2a, 3a, 4a, and 7a the sulfines Cl2C=SO and (CF3)2C=SO could be prepared, and evidence for the existence of the sulfines ClFC=SO and F2C=SO could be obtained.The new pentenes 12 and 14 are described.
- Holoch, Jan,Sundermeyer, Wolfgang
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p. 269 - 278
(2007/10/02)
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- Chlorotrithioperformates - a New Class of Compounds. Preparation and Some Applications
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The α additions of thiosulfenyl chlorides to carbon monosulfide (CS) constitute a general route to compounds containing the so far inaccessible functional group ClC(S)SS.Four examples are presented, CH3C(O)-, ClC(O)-, Cl3C-, and Cl5C2-SSC(S)Cl, all of which were prepared in good yields.The versatility of this new class of compounds as synthetic precursors is demonstrated by chlorination of the thiocarbonyl groups to the corresponding new α,α-dichloroalkanesulfenyl chlorides.The preparation of several derivatives of these sulfenyl chlorides is described.Considering the variety of thiosulfenyl chlorides available, a large group of new compounds has become accessible via this synthetic pathway.
- Moltzen, Ejner K.,Jensen, Birgit,Senning, Alexander
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p. 609 - 618
(2007/10/02)
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- N'-Sulfenyl-N"-dihalophenylimidazolidinediones
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3-(3',5'-Dihalophenyl)-1-sulfenylimidazolidine-2,4-diones of the formula: STR1 wherein X is a chlorine atom or a bromine atom, Y1, Y2 and Y3 are each a chlorine atom or a fluorine atom and R1 and R2 are individually a hydrogen atom or a methyl group, which show high microbicidal activities against various fungi without any material toxicity to mammals and plants and can be produced by reacting the corresponding 1-unsubstituted compound with a sulfenyl halide.
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