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| Number | Title | Issue Date |
| 7232926 | Method for the production of sulphamic acid halogenides The present invention relates to a process for preparing sulfamoyl halides of primary or secondary amines, comprising the following steps: i) reacting a primary or secondary amine A1 with at least equimolar amounts of SO3 | 06/19/2007 |
| 6399821 | Process for the synthesis of perfluorosulphonamides, of perfluorosulphonimides and of their salts, and a sulphonylation reagent The invention concerns a method of sulphonation characterised in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose... | 06/04/2002 |
| 6399820 | Process and reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function The present invention relates to a process and a reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function. This persulphonylation process is characterized in that it comp... | 06/04/2002 |
| 6242645 | Thermally stable aminosulfur trifluorides Diaryl-, dialkoxyalkyl-, alkylalkoxyalkyl-, arylalkoxyalkyl- and cyclic aminosulfur trifluorides fluorinating agents are disclosed.... | 06/05/2001 |
| 6096922 | Process for the synthesis of dialkyl, diaryl, and arylalkyl aminosulfur trifluorides A process for synthesizing an aminosulfur trifluoride is provided. The process includes reacting a secondary amine with SF4 to produce the aminosulfur trifluoride product and a liquid amine-HF adduct. Substantially no solid amine-HF adduct is p... | 08/01/2000 |
| 5874616 | Preparation of bis (fluoroalkylenesulfonyl) imides and (fluoroalkysulfony) (fluorosulfonyl) imides A method for preparing fluoroalkylsulfonyl imides by reacting a fluoroalkylsulfonamide with a fluoroalkylsulfonyl halide or a fluorosulfonyl halide in the presence of a non-nucleophilic base. One reaction is: Z--Rf --SO2 NH2 | 02/23/1999 |
| 4992583 | Process for synthesizing N-chlorothio-sulfonamides The present invention relates to a process for synthesizing N-chlorothio-sulfonamides of the formula: ##STR1## comprising reacting a N,N'-dithiobis(sulfonamide) of the formula: ##STR2## with chlorine gas or sulfuryl chloride in the presence of a... | 02/12/1991 |
| 4327034 | Sulfamic acid halides and processes for the preparation of sulfamic acid halides Sulfamic acid halides and processes for the preparation of sulfamic acid halides by reaction of monosubstituted sulfamic acid halides with halogen compounds in the presence of specific amounts of a basic compound and in the presence of an organic solvent,... | 04/27/1982 |
| 4260560 | Preparation of sulfamyl halides Sulfamyl halides are prepared by reacting sulfamic acids with halogen in the presence of phosphorus or of a phosphorus trihalide; the sulfamic acid can first be prepared from an isocyanate or urea and then be reacted as above in a one-vessel method. The c... | 04/07/1981 |
| 4219499 | Sulfamic acid halides New sulfamic acid halides and a process for their manufacture by reacting N-(-haloalkyl)-sulfamic acid halides with alcohols. The products are starting materials for the manufacture of crop protection agents, dyes and pharmaceuticals.... | 08/26/1980 |
| 4173580 | Production of ଲ-haloalkylaminosulfonyl halides The production of ଲ-haloalkylaminosulfonyl halides by the reaction of an aziridine with a sulfuryl halide, and the new ଲ-haloalkylaminosulfonyl halides. The new compounds which can be prepared by the process of the invention are valuable start... | 11/06/1979 |
| 4134913 | Amidosulfenyl chloride intermediates Novel pesticidal compounds of the formula: ##STR1## wherein R1 is lower alkyl of from 1 to 4 carbon atoms; R2 is hydrogen, halogen or lower alkyl of from 1 to 4 carbon atoms; R3 and R4 are the same or diffe... | 01/16/1979 |
| 4131620 | Sulfamic acid halides and their manufacture New sulfamic acid halides and a process for their manufacture by reacting N-(-haloalkyl)-sulfamic acid halides with alcohols. The products are starting materials for the manufacture of crop protection agents, dyes and pharmaceuticals.... | 12/26/1978 |
| 4115059 | Aromatic sulfonyl fluorides as peroxygen activators A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an aromatic sulfonyl fluoride of the formula ArSO2 F, wherein Ar is an aromatic ring system selected f... | 09/19/1978 |
| 4104298 | Manufacture of sulfamic acid halides Sulfamic acid halides are produced by reaction of sulfamic acids with phosphorus pentahalide in the presence of phosphorus oxyhalide in specific molar ratios and in the presence of halohydrocarbons. The products, some of which are new compounds, are start... | 08/01/1978 |
| 4101571 | Manufacture of sulfamic acid halides Sulfamic acid halides are produced by reaction of sulfamic acids with carbonic acid halides in the presence of carbamic acid halides or dichloromethyleneammonium chlorides. The products are starting materials for the manufacture of plant protection agents... | 07/18/1978 |
| 4096181 | Substituted sulfamic acid halides New sulfamic acid halides and a process for the manufacture of sulfamic acid halides by reacting sulfamic acids with formaldehyde and acid halides. The products are starting materials for the manufacture of crop protection agents, dyes and pharmaceuticals... | 06/20/1978 |
| 4049709 | Vinyl-substituted sulfamic acid halides New sulfamic acid halides and a process for the manufacture of sulfamic acid halides by reacting sulfamic acids with aldehydes and acid halides. The products are starting materials for the manufacture of crop protection agents, dyes and pharmaceuticals.... | 09/20/1977 |
| 4043863 | Process for sizing cellulose fibers with sulfamoylchlorides The present invention relates to a process for sizing cellulose fibers or cellulose fiber containing materials and to a composition for carrying out the process. More particularly the invention relates to a process for sizing according to which cellulose ... | 08/23/1977 |
| 4014931 | Production of ଲ-haloalkylaminosulfonyl halides The production of ଲ-haloalkylaminosulfonyl halides by the reaction of an aziridine with a sulfuryl halide, and the new ଲ-haloalkylaminosulfonyl halides. The new compounds which can be prepared by the process of the invention are valuable start... | 03/29/1977 |
| 3992444 | Production of sulfamic acid halides The production of sulfamic acid halides by reaction of sulfamic acids with acid halides, and the new sulfamic acid halides. The products are starting materials for the production of plant protection agents, dyes and pharmaceuticals.... | 11/16/1976 |
| 3976691 | Dialkylaminosulfur trifluorides as fluorinating agents Dialkylaminosulfur trifluorides such as diethylaminosulfur trifluoride are useful in replacing hydroxyl group and carbonyl oxygen with fluorine in various organic compounds.... | 08/24/1976 |
