Thiazyl fluorides

Thiazyl fluoride is a moisture-sensitive, thermally unstable gas. It is conveniently generated by decomposition of compounds which already... [Pg.140]

Thiazyl fluoride, NSF, is a colourless, reactive, pungent gas (mp —89°, bp -)-0.4°). It is best prepared by the action of HgF2 on a slurry of S4N4 and CCI4 but it can also be made by a variety of other reactions ... [Pg.736]

Thiazyl fluoride (73) can be prepared from the corresponding chloride by halogen exchange the chloride itself is obtained by the thermal depoly-... [Pg.70]

Tetracarbon monofluoride, 1362 Tetrachlorodiphosphane, 4171 Tetrachlorosilane, 4173 Tetraiododiphosphane, 4637 Thiazyl fluoride, 4306... [Pg.285]

Tetratellurium tetranitride, 4773 Thiazyl fluoride, 4306 Thiotrithiazyl chloride, 4033 Thiotrithiazyl nitrate, 4767 Thiotrithiazyl perchlorate, 4032 2-Thioxo-4-thiazolidinone, 1112... [Pg.291]

Urea, melamine, cyanamide, dicyandiamide, and guanidine react at elevated temperatures with sulfur tetrafluoride to give (trifluoromethyl)iminosulfur difluoride (7) in 6-25% yield.172 In the presence of sodium fluoride at 25"C, urea is converted into fluorocarbonyliminosulfur difluoride (8), but at 50°C thiazyl fluoride (9) is the main product, both formed in ca. 60% yield. At higher temperatures, carbonyl difluoride (carbonic difluoride) and sulfur hexafluoride are the sole products of the reaction of urea with sulfur tetrafluoride.173... [Pg.375]

Primary amines react with sulfur tetrafluoride to form an N=S bond. Ammonia reacts with sulfur tetrafluoride at ambient temperature in a flow system to form an unstable gas, thiazyl fluoride (N =SF. 20 Vo).193 194 The reaction with melhylamine conducted at low temperatures affords methyliminosulfur difluoride (1) with excess methylaminc, bis(melhylimino)sulfur is formed as the main product.195,196... [Pg.385]

Cyclohexadiene and singlet oxygen form (103). Most of the important synthetic approaches for 1,2-thiazines use a fragment in which the S-N bond already exists. Syntheses via [4 + 2] cycloadditions constitute a major part of the synthetic repertoire for this class of compounds (CHEC-II(6)370). Thus, pentadiene with TsNSO gives (104) and perfluoro-l,2-thiazine (105) is prepared by the cycloaddition of thiazyl fluoride (FSN) and perfluoro-1,3-butadiene CF2 = CFCF = CF2 (79CC35). [Pg.563]

One of the simplest representatives of the thiazine class is the perfluoro derivative (126), which is prepared by the cycloaddition of thiazyl fluoride (125) and perfluoro-1,3-butadiene (Scheme 50) (79CC35). [Pg.1015]

Thiazyl chloride, see l,3,5-Trichlorotrithiahexahydro-l,3,5-triazine, 4139 Thiazyl fluoride, 4300... [Pg.2145]

Tetratellurium tetranitride, 4767 Thiazyl fluoride, 4300 Thiotrithiazyl chloride, 4027 Thiotrithiazyl nitrate, 4762 Thiotrithiazyl perchlorate, 4026 2-Thioxo-4-thiazolidinone, 1109... [Pg.2485]

Cyclizations can be employed to build new rings. Perfluorobuta-1,3-diene reacts with thiazyl fluoride quantitatively to provide the heterocycle (79JCS(CC)35). [Pg.204]

Thiazyl fluoride is a moistme-sensitive, thermally unstable gas. It is conveniently generated by decomposition of FC(0)NSP2 or Hg(NSF2)2- It may also be obtained from [NSJjAsFe] andCsF orfrom(NSCl)3 andKF intetramethylene sulfone at 80 °C. The microwave spectrum of NSF indicates a bent structure. Thiazyl fluoride can be stabilized by coordination to a transition metal and such complexes, for example, [M(NSF)6] [AsFe] (M = Co, Ni), are conveniently prepared in liquid SO2. ... [Pg.4653]

Cycloadditions can be employed to build up new ring systems. Perfluorobula-l,3-dienc (19) reacts with thiazyl fluoride (20) quantitatively to provide the heterocycle 21.82 83... [Pg.652]

FCSO4S, Cesium fluorine sulfate, 24 22 FNC2H , Dimethylamine, N-fluoro-, 24 66 FNS, Thiazyl fluoride, 24 16 FO3PC4H10, Phosphorofluoridic acid, diethyl ester, 24 65... [Pg.260]

NFS, Thiazyl fluoride, 24 16 NF2HS, Imidosulfurous difluoride mercury complex, 24 14 NFsOPSiCsHis, Phosphinimidic acid, P,P-dimethyl-iV-(trimethylsilyl)-2,2,2-trifluoroethyI ester, 25 71 NF3OSC, Imidosulfurous difluoride, (fluo-rocarbonyl)-, 24 10 NF3S, Thiazyl trifluoride, 24 12 NFjH, Ammonium, tetrafluoro-, (hydrogen difluoride), 24 43... [Pg.271]

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