AbstractUmsetzungen der NN‐Dihalogenperfluoralkanamine RfNX2 (Rf = CF3, C2F5; X = Cl, Br) mit S8, S4N4 und A = SX2 (A = RfN, O) werden beschrieben. Dabei lassen sich als Produkte isolieren: Schwefeldihalogenidimide RfNSX2 (Rf = CF3, C2F5, X = Cl, Br), Schwefeldiimide RfNSNRf und Bis(schwefeldiimido)sulfide (RfNSN)2S (Rf = CF3, C2F5). Thionylimide RfNSO sind auf diesem Wege nicht in präparativem Maßstab zugänglich.

AbstractIn addition to the reaction shown in the scheme, the sulfurdiimides (IV) are also obtained from (I) and N‐perfluoroalkyl sulfurdichloroimides.

ChemInformVolume 19, Issue 1 Preparative Organic Chemistry ChemInform Abstract: The HgF2-Assisted Addition of the CF3S Group to the CN Triple Bond. M. GEISEL, M. GEISEL Fachbereich 2, Univ. Bremen, D-2800 BremenSearch for more papers by this authorR. MEWS, R. MEWS Fachbereich 2, Univ. Bremen, D-2800 BremenSearch for more papers by this author M. GEISEL, M. GEISEL Fachbereich 2, Univ. Bremen, D-2800 BremenSearch for more papers by this authorR. MEWS, R. MEWS Fachbereich 2, Univ. Bremen, D-2800 BremenSearch for more papers by this author First published: January 5, 1988 https://doi.org/10.1002/chin.198801141Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume19, Issue1January 5, 1988 RelatedInformation

AbstractThe nitrile (I) reacts with C12 or Br2 in the presence of HgFz to give the N,N‐dihalo‐1,1‐difluoromethanamines (II) and (III).

AbstractSynthesen und Eigenschaften Fluor enthaltender Iminiumsalze werden beschrieben.

AbstractThe reaction of the nitriles (I) with halogens and HgF2 gives either the Title compounds (II) (Cl‐F exchange), (IV) and (VI) or the imines (V) and (VII) [with appropriate substrate/reagents ratios, (VI) and (VII) are obtained selectively from (Ib) or (IC)]; an analogous reaction yields the bromochloroamines (VIII).

Different methods for the preparation of fluorinated iminium salts RR1CNR2R3+MF6− (R=R1=F ; R2=R3=CH3, C2H5 M=As, Sb 4a − c R=H, R1=F; R2=R3=CH3 M=As, Sb 5a, b R=R1=CF3; R2=H, R3=CH3 M=Sb 12 R=R1=CF3; R2=R3=CH3 M=As 14) are reported, the spectroscopic properties (IR, NMR) of the cations of these salts are briefly discussed. By F−-addition to these salts, e.g. to 16, perfluoroalkyl-bis(alkyl)-amines (e.g. (CF3)2CFN(CH3)2 15) can be prepared; from the methylation of CF3NCF2 bis(trifluoromethyl) methylamine (CF3)2NCH3 (11) was obtained.

Chemischer InformationsdienstVolume 13, Issue 39 Preparative Organic Chemistry ChemInform Abstract: FLUORINATION REACTIONS ON 3,4-DICHLORO-1,2,5-THIADIAZOLE M. GEISEL, M. GEISELSearch for more papers by this authorR. MEWS, R. MEWSSearch for more papers by this author M. GEISEL, M. GEISELSearch for more papers by this authorR. MEWS, R. MEWSSearch for more papers by this author First published: September 28, 1982 https://doi.org/10.1002/chin.198239157Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume13, Issue39September 28, 1982 RelatedInformation

α, α-Difluoro-N, N-dihaloamines RCF2NX2 are simply prepared from nitriles and halogens in the presence of stoichiometric amounts of HgF2, e.g. Sometimes also small amounts of the N-halo-imines (e.g. CF3CFNBr) are observed. These HgF2- assisted additions avoid halogenomonofluorides, they occur under mild conditions (below r.t.) and with high yields (80–90%). Similar reactions are possible with cyanogen: The NN′-dichloro- and NN′- dibromo-ethanediimidoyldifluorides are colorless solids. The structure of the dibromide was determined by X-ray-investigations. The spectroscopic and some of the chemical properties of these N-halogeno-derivatives will be discussed.