Die Amidothiophosphonsäuren (III) werden durch basische Hydrolyse ihrer Chloride (I) über ihre K‐Salze (II) hergestellt und elementaranalytisch, IR‐ sowie NMR‐spektroskopisch, aber auch durch chemische Methoden charakterisiert.
Synthese und Molekularrefraktionen bekannter und unbekannter Vertreter der Arylschwefelchloride werden angegeben. Aus den Werten der Molekularrefraktion wird die bisher unbekannte Refraktion der SCl‐Bindung und der Bindungen der Atomgruppe CarSCl berechnet.
Some 2 -a r y l s u l p h o n y l~d o -2 -t h i o n o -S -m e t h y l -l~,~o~p h~p h o~a n~ (l), containing two chiral centres, give NMR spectra in which splittings of the 'H and 'jC signals of the 5-methyl substituent and of the ,'P signal indicate that they exist in an approximately 70:30% ratio of two rncemic mixtures, 2 and E respectively, diastereomeric to each other. These splittings were invariably observed for compounds la, containing a monosubstituted salphonylamido group (Y=H) and various substituents at position 4' of the aryl group, X=H, CH,, OCH,, F, CI and Br. The methylenic protons in position 4 of the phospholane ring are diastereotopic and therefore magnetically non-equivalent. Benzene-induced shifts were measured for the 2 isomers of compounds la, X = H, F and for compound lb, containing an N-disubstituted sulphonylamido group (Y = CH,) and X= H; the tentative interpretation of these shifts places the more shielded diastereotopic methylene proton on the same side of the ring as the 5-methyl substitnent The H-P and H-H coupling constants indicate that the preferred conformation of the dioxaphospholane M g should be a 'twisted envelope' shape with the 5-methyl substituent in the equatorial position.
€ s wird ubcr die Synthese, die physikalischen und chemischen EigensLhaften der N N-BE-[U O-dialkyl-thiopliosphorylmercapto]-arylsulfonam~de 1 -8 und ihre Reduktionsprodukte, die N-[O.O-Dlalkyl-thiophosphorylmcrcapto]-ary~sulfonamide 9 l S 2 berichtet Heteroorganic Compounds, XL') N,N-Bis(O,O-dialkylthiophosphorylthio)ary~ulfonamid~ and N(0,O-Dialkylthiophosphorylthio)arylsulfonamides The synthesis, the physical and chemical propcrties of N,N-Bis(O, O-dialkylthiophosphorylthio)arylwlfonamides (1 -8) and of their reduction products, the N-(0,O-dialkylthiophosphorylthio)arylsulfonamides (9 -15), are described.
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