cas 7791-25-5, Sulfuryl chloride | Articles data

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Production and infrared absorption spectrum of ClSO2 in matrices
A new species, ClSO2, is produced and identified with infrared (IR) absorption spectra when an argon or krypton matrix containing Cl2 and SO2 is irradiated with laser emission at 355 nm. Lines at 1311.0, 1309.6, 1099.8, 1098.2, 497.7, and 455.8 cm-1 (or 1309.5, 1098.5, 497.0, and 454.2 cm-1) are assigned to ClSO2 isolated in solid Ar (or Kr). Assignments of IR absorption lines are based on results of 34S and 18O isotopic substitution (in solid Kr) and theoretical calculations. Theoretical calculations using density-functional theories (B3LYP and B3P86 with an aug-cc-pVTZ basis set) were performed to predict the geometry, energy, vibrational frequencies, and infrared intensities of possible isomers of ClSO2: (pyramidal) ClSO2, cis-ClOSO, (nonplanar) ClOSO, and cis-ClSOO. Results predicted for pyramidal ClSO2 agree with observed experimental data. This is the first identification of ClSO2, which is presumably an important intermediate during photolysis of Cl2SO2 and in the reaction of Cl with SO2, especially at low temperatures. In addition to ClSO2, irradiation of the Cl2/SO2/Ar matrix sample with laser light at 308 nm produces Cl2SO2. Possible mechanisms of formation are discussed.
Bahou, Mohammed,Chen, Shih-Fung,Lee, Yuan-Pern
p. 3613 - 3619
(2000)
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Preparation method for 2,4-dichlorophenol, and preparation method for 2,4-dichlorophenolate
The invention provides a preparation method for 2,4-dichlorophenol. The preparation method comprises the following steps: S1) mixing an initiator, phenol and a promoter in an organic solvent and carrying out chlorination under low temperature conditions to obtain the chlorination tail gas of phenol and a reaction solution, wherein the initiator is sulfuryl chloride, and the promoter is an ether compound; S2) mixing the chlorination tail gas of phenol with chlorine gas for a reaction to obtain sulfuryl chloride; and S3) mixing the sulfuryl chloride with the reaction solution and carrying out chlorination to obtain the chlorination tail gas of phenol and 2,4-dichlorophenol. Compared with the prior art, the invention has the following advantages: since chlorine gas is used as an initial chlorination raw material and continuously produces sulfuryl chloride through a reaction with sulfur dioxide in the chlorination tail gas of phenol, and then the sulfuryl chloride is continuously added into the reaction solution to obtain 2,4-dichlorophenol, so the preparation method has the advantages of high selectivity, low cost, high yield and simple flow due to adoption of continuous reaction andtail gas recycling flow; moreover, the reaction is carried out under low temperature conditions, so selectivity is improved; and the promoter is used, so a reaction rate is increased.
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Paragraph 0061; 0064

(2018/09/08)

NOVEL CATALYTIC SYSTEMS FOR THE RING-OPENING (CO)POLYMERIZATION OF LACTONES
The present invention relates to the use of a system composed of a base and of a sulphonamide, as a catalyst for the ring-opening (co)polymerization of lactones. The present invention also relates to novel sulphonamides and to a process for the ring-opening (co)polymerization of lactones comprising the use of sulphonamides in combination with a base as a catalytic system.
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(2011/04/14)

Photochemistry of SO2/CI2/O2 gas mixtures: Synthesis of the new peroxide CISO2OOSO2CI
Photochemically induced gas-phase reactions of CI2/SO 2/O2 mixtures at -78 °C have been investigated on a preparative scale. The sulfuryl chlorides CISO2(OSO2) nCI, n = 0,1, or 2, along wit
Romano, Rosana M.,Vedova, Carlos O.Della,Beckers, Helmut,Willner, Helge
p. 1906 - 1910
(2009/07/18)

Sulphonamido-substituted bridged bicycloalkyl derivatives
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(2008/06/13)

7-alkyl- and cycloalkyl-substituted imidazotriazinones
The present invention relates to 7-alkyl- and cycloalkyl-substituted imidazotriazinones, to processes for their preparation and to their use as medicaments, in particular as inhibitors of cGMP-metabolizing phosphodiesterases.
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(2008/06/13)

Method of treating a patient having precancerous lesions with phenyl purinone derivatives
Derivatives of Phenyl Purinone are useful for the treatment of patients having precancerous lesions. These compounds are also useful to inhibit growth of neoplastic cells.
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(2008/06/13)

Method of treating a patient having precancerous lesions with phenyl cycloamino pyrimidinone derivatives
Derivatives of Phenyl Cycloamino Pyrimidinone are useful for the treatment of patients having precancerous lesions. These compounds are also useful to inhibit growth of neoplastic cells.
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(2008/06/13)

Indole-2,3-dione-3-oxime derivatives, their preparation and use
The present patent application discloses compounds having the formula STR1 or a pharmaceutically acceptable salt thereof wherein R1, X and R5 have the meanings set further in the specification. A is a ring of five to seven atoms fused with the benzo ring at the positions marked a and b. The compounds are useful in the treatment of cerebrovascular disorders for example.
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(2008/06/13)

Substituted 1-phenyl-3-pyrazolecarboxamides active on neurotensin receptors, their preparation and pharmaceutical compositions containing them
The invention relates to new substituted 1-phenyl-3-pyrazolecarboxamides having a great affinity for human neurotensin receptors, to a process for preparing them and to pharmaceutical compositions containing them as active principles. More particularly, this invention relates to the discovery that the affinity for neurotensin receptors, especially human neurotensin receptors, is increased by substituting the phenyl group of 1-phenyl-3-pyrazolecarboxamide compounds with particular groups.
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(2008/06/13)

Fused indole and quinoxaline derivatives, their preparation and use
The present patent application discloses compounds having the formula STR1 or a pharmaceutically acceptable salt thereof wherein R1 is hydrogen, alkyl or benzyl; X is O or NOR2, wherein R2 is hydrogen, alkyl or benzyl; Y is N--R4 wherein R4 is hydrogen, OH or alkyl; n is 0 or 1; R6 is phenyl which is substituted one or more times with substituents selected from the group consisting of SO2 NR'R", CONR'R", and COR'" wherein R' and R" each independently are hydrogen, alkyl, or --(CH2)p --W, wherein p is 0, 1, 2, 3, 4, 5, or 6, and W is hydroxy, amino, alkoxycarbonyl, or phenyl which may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, NO2, amino, alkyl, alkoxy or methylenedioxy; or wherein R' and R" together is (CH2)r Z(CH2)s wherein r and s each independently are 0, 1, 2, 3, 4, 5, or 6 and Z is O, S, CH2 or NR"" wherein R"" is hydrogen, alkyl, or --(CH2)p --W, wherein p is 0, 1, 2, 3, 4, 5, or 6, and W is hydroxy, amino, alkoxycarbonyl, or phenyl which may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, NO2, amino, alkyl, alkoxy or methylenedioxy; and wherein R'" is hydrogen, alkyl, alkoxy or phenyl which may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, NO2, amino, alkyl, alkoxy or methylenedioxy; A is a ring of five to seven atoms fused with the benzo ring at the positions marked a and b. The compounds are useful in the treatment of cerebrovascular disorders for example.
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(2008/06/13)

Thiophenyl-, furyl-and pyrrolyl-sulfonamides and derivatives thereof that modulate the activity of endothelin
Thiophenyl-, furyl- and pyrrolyl-sulfonamides and methods for modulating or altering the activity of the endothelin family of peptides are provided. In particular, isoxazolyl-thiophenyl-sulfonamides, isoxazolyl-furyl-sulfonamides and isoxazolyl-pyrrolyl-sulfonamides and methods using these sulfonamides for inhibiting the binding of an endothelin peptide to an endothelin receptor by contacting the receptor with the sulfonamide are provided. Methods for treating endothelin-mediated disorders by administering effective amounts of one or more of these sulfonamides or prodrugs thereof that inhibit or increase the activity of endothelin are also provided.
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(2008/06/13)

PYRIDOPYRIMIDINONE ANTIANGINAL AGENTS
Compounds of the formula and pharmaceutically acceptable salts thereof, wherein R 1 is H, C 1 -C 4 alkyl CN or CONR 4 R 5 ; R 2 is C 2 -C 4 alkyl; R 3 is SO 2 NR 6 R 7, NO 2, NH 2, NHCOR 8 NHSO 2 R 8 or N(SO 2 R 8) 2 ; R 4 and R 5 are each independently selected from H and C 1 -C 4 alkyl; R 6 and R 7 are each independently selected from H and C 1 -C 4 alkyl optionally substituted with CO 2 R 9, OH, pyridyl 5-isoxazolin-3-onyl, morpholino or 1-imidazolidin-2-onyl; or together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino, morpholino, 1-pyrazolyl or 4-(NR 10)-1-piperazinyl group wherein any of said groups may optionally be substituted with one or two substituents selected from C 1 -C 4 alkyl, CO 2 R 9, NH 2 and OH; R 8 is C 1 -C 4 alkyl or pyridyl; R 9 is H or C 1 -C 4 alkyl; and R 10 is H, C 1 -C 4 alkyl or (hydroxy) C 2 -C 3 alkyl; are selected cGMP PDE inhibitors useful in the treatment of, inter alia, cardiovascular disorders such as angina, hypertension, heart failure and atherosclerosis
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(2008/06/13)

SULFONAMIDES AND DERIVATIVES THEREOF THAT MODULATE THE ACTIVITY OF ENDOTHELIN
Sulfonamides and methods using these sulfonamides for inhibiting the binding of an endothelin peptide to an endothelin receptor by contacting the receptor with the sulfonamide are provided. Methods for treating endothelin-mediated disorders by administering effective amounts of one or more of these sulfonamides or prodrugs thereof that inhibit or increase the activity of endothelin are also provided. The sulfonamides have formula I: STR1 in which Ar 1 is a 3-or 5-isoxazolyl and Ar. sup.2 is selected from among alkyl, including straight and branched chains, aromatic rings, fused aromatic rings and heterocyclic rings, including 5-membered heterocycles with one, two or more heteroatoms and fused ring analogs thereof and 6-membered rings with one, two or more heteroatoms and fused ring analogs thereof. Ar 2 is preferably thiophenyl, furyl, pyrrolyl, naphthyl, and phenyl. Compounds in which Ar. sup.1 is a 4-halo-substituted isoxazole are more active than the corresponding alkyl-substituted compound and compounds in which Ar 1 is substituted at this position with a higher alkyl tend to exhibit greater affinity for ET B receptors than the corresponding lower alkyl-substituted compound.
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(2008/06/13)

N-azinyl-N'-(het)arylsulphonyl-ureas
The invention relates to novel N-azinyl-N'-(het)arylsulphonyl-ureas of the formula (I), STR1 in which J represents J-1 to J-4, where J-1 to J-4 have the following meanings: STR2 in which E represents a direct linkage, alkyl ene, oxygen, alkylamino or sulphur, and in which A represents N or CR11 (where the radicals R1 -R11 have the meanings given in the description), to several processes and novel intermediates for their preparation, and to their use as herbicides.
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(2008/06/13)

PYRAZOLOPYRIMIDINONE ANTIANGINAL AGENTS
Compounds of the formula:wherein R1 is H, C1-C3 alkyl, C3-C5 cycloalkyl or C1-C3 perfluoroalkyl; R2 is H, C1-C6 alkyl optionally substituted by OH, C1-C3 alkoxy or C3-C6 cycloalkyl, or C1-C3 perfluoroalkyl; R3 is C1-C6 alkyl, C3-C6 alkenyl, C3-C6 alkynyl, C3-C7 cycloalkyl, C1-C6 perfluoroalkyl or (C3 -C6 cycloalkyl)C1-C6 alkyl; R4 taken together with the nitrogen atom to which it is attached completes a pyrrolidinyl, piperidino, morpholino, or 4-N-(R6)-piperazinyl group; R5 is H, C1-C4 alkyl, C1-C3 alkoxy, NR7 R8, or CONR7 R8 ; R6 is H, C1-C6 alkyl, (C1-C3 alkoxy) C2-C6 alkyl, hydroxy C2-C6 alkyl, (R7 R8 N)C2 -C6 alkyl, (R7 R8 NCO)C1-C6 alkyl, CONR7 R8, CSNR7 R8 or C(NH)NR7 R8 ; R7 and R8 are each independently H, C1-C4 alkyl, (C1-C3 alkoxy)C2-C4 alkyl or hydroxy C2-C4 alkyl; and pharmaceutically acceptable salts thereof, are selective cGMP PDE inhibitors useful in the treatment of cardiovascular disorders such as angina, hypertension, heart failure and atherosclerosis
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(2008/06/13)

Herbicidal sulfonomides
Compounds of the formula STR1 and salts thereof, W and W, being independently O and S, A being a nitrogen-containing heterocyclic ring system, E being O, S(O)m or NR3 where m is 0-2, R1, R2 and R3 is hydrogen, C1 -C4 alkyl or C2 -C4 alkenyl or alkynyl and E1 being hydrogen, halogen or one of a variety of organic substituents. The compounds are effective herbicides.
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(2008/06/13)

Herbicidal sulfonamides
Compounds of the formula and salts thereof, W and W, being independently O and S, A being a nitrogen-containing heterocyclic ring system, E being O, S(O)mor NR3 where m is 0-2, R1, R2 and R3 is hydrogen, C1-C4 alkyl or C2-C4 alkenyl or alkynyl and E1 being hydrogen, halogen or one of a variety of organic substituents. The compounds are effective herbicides.
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(2008/06/13)

Infrared spectroscopic investigation of the reaction between SOCl2 and NO2
FT-IR spectroscopy has been used to explore the gas-phase reaction between NO2 and SOCl2. This reaction occurs in several stages. The initial products are NOCl, NO2Cl, and SO2. Standard kinetic plots indicated that this initial reaction is first order in SOCl2 and second order in NO2. Upon standing, a white solid containing at least three different compounds formed. These products and the reactions leading to their formation are also discussed.
Devore,Gallaher
p. 3506 - 3509
(2008/10/08)

PREPARATION OF SULFURYL CHLORIDE ON ACTIVE CARBON.
The authors have examined the formation of SO//2Cl//2 on AG-2 carbon at 18. 2-71. 6 degree C. The reaction gases in a ratio of 1:1 were fed into a thermostattable reactor filled with the catalyst. The latter was dried thoroughly prior to loading into the reactor, since even small amounts of moisture contained in it substantially decreased the yield of the product. The SO//2Cl//2 obtained was condensed at 0 degree C and analyzed with a Tsvet-100 chromatograph. It is found that the equilibrium concentration of SO//2Cl//2 is attained in the reactor in the case of a residence time of the gases in the reaction zone ( tau ) greater than 1 sec. This made it possible to calculate the equilibrium constant (K//e//q) of reaction. The degree of conversion of the gases to SO//2Cl//2( eta ) also decreases as tau decreases.
Borovikov,Pokhyl',Petrushchenko
p. 798 - 800
(2008/10/08)

Pesticidal compounds, compositions and methods
Novel compounds are described which are substituted benzophenone hydrazones. They have pesticidal activity, especially against insects and acarids, and pesticidal compositions and methods are described. Methods of making the compounds, and novel intermediates, are also described.
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(2008/06/13)

Phenyl-benzimidazolyl-furanes
2-Phenyl-5-benzimidazol-2'-yl-furanes of the formula STR1 in which R1 is a sulphonic acid group or an ester or amide thereof, a carboxylic acid group or an ester or amide thereof, a cyano group, a trifluoromethyl group or an alkyl- or arylsulphonyl group, R2 is alkyl having 1 to 8 carbon atoms, alkenyl having 3 or 4 carbon atoms, cyclohexyl, hydroxyalkyl having 2 to 4 carbon atoms, alkoxyalkyl having a total of 3 to 6 carbon atoms, carboxyalkyl having 2 to 6 carbon atoms, carbalkoxyalkyl having a total of 3 to 6 carbon atoms, cyanoalkyl having 2 to 4 carbon atoms, carbamoylalkyl which has 1 to 6 carbon atoms in the alkyl moiety and is unsubstituted or substituted on the nitrogen atom by 1 or 2 alkyl having 1 to 3 carbon atoms, benzyl which is unsubstituted or substituted by chlorine, methyl or methoxy, dialkylaminoalkyl having a total of 3 to 7 carbon atoms or phenethyl and, if n is the number 0, also hydrogen, R3 is hydrogen, alkyl having 1 to 6 carbon atoms, hydroxyalkyl having 2 or 3 carbon atoms, cyanoalkyl having 2 to 4 carbon atoms, carboxyalkyl having 2 or 3 carbon atoms, carbamoylmethyl which is unsubstituted or substituted on the nitrogen atom by 1 or 2 alkyl having 1 to 3 carbon atoms, alkoxycarbonylalkyl having a total of 3 to 6 carbon atoms, alkenyl having 3 or 4 carbon atoms or benzyl which is unsubstituted or substituted by chlorine or methyl, R4 is hydrogen, chlorine, bromine, fluorine, carboxyl carbalkoxy having a total of 2 to 5 carbon atoms, alkoxyalkoxycarbonyl having a total of 4 to 6 carbon atoms, benzyloxycarbonyl, cyano, sulpho, alkylsulphonyl having 1 to 4 carbon atoms, carbamoyl or sulphamoyl which are unsubstituted or substituted by 1 or 2 alkyl groups having 1 to 4 carbon atoms, or sulphonic acid phenyl ester or trifluoromethyl, R5 is hydrogen, chlorine or methyl, R6 is hydrogen or chlorine, n is the number 0 or 1 and A? is a colorless anion equivalent to the cation of the fluorescent brightener, their preparation as well as their use for optically brightening organic materials are disclosed.
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(2008/06/13)

N-Substituted 2-methoxybenzenesulphonamides and medicaments containing them
The invention relates to new N-substituted benzenesulphonamides of general formula STR1 in which N IS 2 OR 3, R1 and R2 are hydrogen atoms, methyl, ethyl groups, or jointly form with the nitrogen a nitrogenized heterocyclic ring having 5 or 6 members, in particular a piperidino, pyrrolidino or morpholino group, R3 is a hydrogen atom, an NO2 group, an NH2 group, or a halogen, R4 is a hydrogen, a halogen, an NH2 group or a sulphonamide group. These compounds are useful as active substances of medicaments, in particular as antiemetic.
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(2008/06/13)