N-Propyl disulfide

The authors suggested that di-n-propyl disulfide is formed by the reaction of both hydrated electrons and OH radicals, however it should be mentioned that the yield from hydrated electrons should be higher than from OH radicals as otherwise N20 will not reduce the yield of dipropyl disulfide as N20 merely converts eaq to OH radicals. The yield from each radical could be calculated from the yields in the presence of the various scavengers, but unfortunately these data were not given by the authors. 

Dipole moments in benzene of di-n-hexadecyl mono-, di-, tri-, and tetrasulfide have been reported by Woodrow, Carmack, and Miller (230), of dimethyl and diethyl di- and trisulfide and di-n-propyl disulfide by Smyth and co-workers (160, 225), of the three isomeric dibutyl disulfides by Rogers and Campbell (193), and of diphenyl disulfide and p-substituted diphenyl disulfides by Gur yanova (137). 

Further investigation of the disulfide reaction, first reported from our own laboratory (143), has revealed that the ionic mechanism appears to be the favored pathway. Thus, the reaction of triethyl phosphite with n-propyl disulfide (125) proceeds with comparable facility in the presence or absence of hydroquinone as a radical inhibitor to yield in either case the mixed thioether which is predicted by the ionic but not the radical mechanism. Symmetrical aryl disulfides are more reactive than alkyl disulfides, and with the unsymmetrical disulfides studied, the transformation takes place exothermically at room temperature. 

Perfluorosulfenylchlorides. Chlorine passed at 115-130° over 90 g. UV-irradiated bis (perfluoro-n-propyl) disulfide for 2 days heptafluoro-n-propanesulfenyl chloride. Y 81% based on startg. m. consumed conversion 67.8%. E. Kober, Am. Soc. 81, 4810 (1959). 

It forms azeotropic mixts with methylol, carbon disulfide, isopentane, isopropyl halides, isoprene, etc. Prepn is by treating isopropyl ale with nitrosyl chloride. Also, by passing N02 into isopropyl ale at 25—30°. Coml prepn is similar to that of n-propyl nitrite (above). The nitrite has a flash p of < 10°... 

Figure 1. Separation of selected solvents spiked into a synthetic sample at TLV levels (A) aqueous phase, (B) carbon disulfide phase 1, ethanol, 2, acetone, 3, carbon disulfide, 4, 2-propanol, 5, 1-propanol, 6, methyl ethyl ketone, 7, ethyl acetate, 8, 1-butanol, 9, isopropyl acetate, 10, n-hexane, 11, n-propyl acetate, 12, methyl isobutyl ketone, 13, toluene (19)...

Methyl propyl disulfide (l-(Methyldithio)propane) CHjSSCjH -n... 

Propyl sulfide o-Propyl sulfide (/i-n-Propyl sulfide Ethyl methyl sulfide Dimethyl disulfide Butyl sulfide Dibuytyl sulfide Trimethylene sulfide Ethylene sulfide Propylene sulfide Allyl sulfide... 

Dimethylpropyl. b n-Propyl. c Ethyl, d 1,2,2-Trimethylpropyl. e 1,3-Dimethylbutyl. f isoPropyl. (2) Wear of copper pin against steel disk distance-dependent volume-rate. Metal salts of diisobutyl dithiophosphate. g Pb. h Ag. k Od. m Ou. n Zn. p Free diisobutyl dithiophosphoric acid. r Oorresponding disulfide. (3) Wear of steel pin against steel disk distance-dependent volume-rate. Metal salts of diisobutyl dithiophosphate. Data by Rowe and Dickert [59]. 

Allyl propyl disulfide Trisulfides Structural class 1 1700 N No safety concern... 

Typical dryer exhaust emissions are sulfur compounds such as hydrogen sulfide, carbon disulfide, carbonyl sulfide, and methyl and n-propyl mercaptans. In addition to ammonia, the only amine present is trimethyl amine. Since the emissions from the dryers contain considerable moisture at temperature of about 95°C, necessary means should be provided to remove most of this moisture and to cool the air before further odor treatment. Also, there may be dust particles in the cyclone exhanst that shonld be removed before effective odor measnres can be applied. This is normally... 

Dipropyl-2,2 -dihydroxyamine. See Diisopropanolamine N,N-Di-n-propyl-2,6-dinitro-4-trifluoromethylaniline. See Trifluralin Dipropyl disulfide. See Propyl disulfide Dipropylene carbonate. See Propylene carbonate... 

Propyl allyl disulfide. See Allyl propyl disulfide Propylamine. See n-Propylamine 2-Propylamine. See Isopropylamine n-Propylamine... 

Propyl decanoate. See Propyl caprate Propyl 3-(dimethylamino) propylcarbamate hydrochloride Propyl (3-(dimethylamino) propyl) carbamate monohydrochloride. See Propamocarb hydrochloride Propyl dipropasol solvent. See Dipropylene glycol n-propyl ether 1-Propyldisulfamylpropane. See Propyl disulfide Propyl disulfide... 

C3 6H7 6Cli N802S8Zn4, zinc (II) N,N -dimethyl-N,N -bis(/3-mercaptoeth-yDethylenediamine chloride, 39B, 832 C36H84S12Pdgr Palladium n-propyl mercaptide, 33B, 497 C36H9oFe6Mo2N3Si 7, Tris (tetraethylammonium) tri-/Li-sulf ido-bis[ tet-ra-M3-sulfido-tri(ethylthioiron)molybdate], 45B, 1323 C3 H3oP2PdS2, Bis(triphenylphosphine)(carbon disulfide)palladium, 33B, 500... 

A mixture of 17j -acetoxy-2a-bromo-5a-androstan-3-one refluxed 14 hrs. with excess n-propyl mercaptan in chloroform under Ng, solvent and excess mercaptan removed in vacuo, the residue stirred and refluxed 4 hrs. in aq.-methanolic HCl, the resulting n-propyl mercaptan and disulfide removed hy co-distillation with water in vacuo, the crude product mixture reacetylated hy heating 1 hr. with acetic anhydride and pyridine, finally the 3-ketone removed as its bisulfite addition product after treatment of the mixture with aq. Na-metabisulfite in boiling methanol 17j -acetoxy-5-a-androstan-2-one. Overall Y 41.5%.—Reduction of the intermediate 2,3-bis-(n-propylthio)-5a-androst-2-en-17/ -ol acetate by n-propyl mercaptan occurs only under strongly acidic conditions and in a random manner to produce the 2- and 3-n-propylthio derivatives in essentially equal quantities. The 3-ketone forms a bisulfite addition product under conditions where the 2-ketone does not react at all. Hydrolysis of the addition product affords a 49% yield of the 3-ketone, which can be used again. R. L. Clarke, J. Org. Chem. 28, 2626 (1963). 

Preparative Photolysis. The preparative photolysis of an aqueous solution (pH=8.5) of AETSAPPE (2.5 M) was conducted in a 1-inch diameter quartz test tube in a Rayonet Reactor (Southern New England Radiation Co.) fitted with 254 nm lamps. Within two hours the solution gelled and the reaction was terminated. Upon acidification the solution cleared, and the product could be re-precipitated by addition of base. This indicates loss of the thiosulfate functionality. The product was dissolved in dilute HC1, precipitated with acetone, and filtered. This process was repeated three times, and the final precipitate was washed with water. The product (20 to 30 mg) was dried in vacuo for 24 hours and stored in a dessicator until use. Comparison of the13 C NMR spectrum of the product with the starting AETSAPPE 13C NMR spectrum clearly shows that the thiosulfate methylene peak shifted upfield, from 39 ppm to 35 ppm. The complete 13 C NMR and IR analysis of the product were consistent with the disulfide product. Further, elemental analysis of the product confirmed that the product was the desired disulfide product 2-amino (2-hydroxy 3-(phenyl ether) propyl) ethyl disulfide (AHPEPED) Expected C 58.39, H 7.08, N 6.20, S 14.18 actual C 58.26, H 7.22, N 6.06, S 14.28. 

BUTYL-HEXADECYL-SULFIDE DECYL-SULFIDE ETHYL-OCTADECYL-SULFIDE HEPTADECYL-PROPYL-SULFIDE HETHYL-NONADECYL-SULFIDE 1-EICOSANETHIOL DECYL-DISULFIDE TRI-o-CRESYL PHOSPHATE 1-PHENYLPENTADECANE 1-CYCLOPENTYLHEXADECANE 1-CYCLOHEXYLPENTADECANE 1-PHENYLHEXADECANE 1-CYCLOHEXYLHEXADECANE n-BUTYL STEARATE DIISOOCTYL PHTHALATE DIOCTYL PHTHALATE DINONYLPHENOL TETRAPHENYLETHYLENE DIISODECYL PHTHALATE... 

OCTADECYNE OLEIC ACID DIBUTYL SEBACATE DI HEXYL ADIPATE 1-CYCOPENTYLTRIDECANE 1-CYCLOHEXYLDOOECANE 1-OCTADECENE STEARIC ACID n-OCTADECANE DINONYL ETHER 1-OCTADECANOL BUTYL-TETRADECYL-SULFIDE ETHYL-HEXADECYL-SULFIDE HEPTADECYL-HETHYL-SULFIDE NONYL-SULFIDE PENTADECYL-PROPYL-SULFIDE 1-OCTADECANETHIOL NONYL-DISULFIDE 1-n-NONYLNAPHTHALENE n-TRIDECYLBENZENE... 

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