Thiocyanates mercaptans

Aliphatic methyl ketones (CH3C(0)CH3) Simple aromatic nitro compounds (NO+CO) Straight-chain mercaptans Thiocyanates and isothiocyanates... 

Aldehydes and ketones Alkanes and cycloalkanes Mercaptans Thiocyanates... 

Fluoroacetylation of hydrogen sulfide, mercaptans, and thiocyanates have already been discussed in the first edition [10] A useful extension of this particular chemistry is the fluoroacylation of trifluoromethyldisulfane [30] (equation 19)... 

The l.d. 50 for mice of this compound was 15 mg./kg. Some of the higher members of this series show an alternation of toxicity, as do also the mercaptans produced by reduction of the thiocyanates by lithium aluminium hydride. Thus F(CH2)nSH was toxic when n was even. 

Compound Name Polypropylene Glycol Tetrahydrofuran Dimethyl Sulfide N-Butyl Mercaptan Thiophosgene Ammonium Thiocyanate Ethyl Mercaptan Methyl Mercaptan Thiophosgene Phosphorus Pentasulfide Thiram Thiram... 

In addition to the compounds described in the following paragraphs, see also Hydrogen Sulfide Mercaptan Sodium Thiosulfate Sulfuric Acid Sulfurous Acid Thiocyanic Acid Thiocthcrs Thiophene and Thiourea. 

X is the residue of inorganic or organic acid (the fluorine atom, cyanogroup, thiocyan) or acid residue (phenol, mercaptan, etc.). At present hundreds of organophosphorus insecticides are known. Some of them have a very wide action spectrum and kill many species of insects. Organophosphorus insecticides differ by their toxicity for warmblooded animals, stability, period of action, etc. 

Another economic problem of glucosinolates is the burnt flavor of milk from cattle who have eaten the cruciferous weed Coronopus didy-mus. This is caused by benzyl methyl sulfide or benzyl mercaptan formed in the cow from the glucotropaeolin of the weed (110), presumably via the thiocyanate. Finally, ferrous ion catalyzes the nonenzymatic breakdown (H) of glucosinolates to nitriles and thioamides (111)-... 

Perchloromethyl mercaptan may also be obtained by the action of chlorine on methyl thiocyanate or on thiophosgene. ... 

Oxidations by chlorine are limited to only few types of compounds. In organic solvents and pyridine [681] or hexamethylphosphoramide (HMPA) [682] as cosolvents, primary alcohols are oxidized to aldehydes and secondary alcohols to ketones [681, 682]. Secondary alcohols are oxidized in preference to primary alcohols [681]. Many oxidations with chlorine are carried out in aqueous media and involve sulfur-containing compounds. Mercaptans [683], alkyl thiolcarboxylates [683], thiocyanates [684], isothioureas [684], disulfides [655], and sulfinic acids [656] are transformed into sulfonyl chlorides. The chlorination of dimethyl disulfide in acetic anhydride yields methanesulfinyl chloride [657]. 

Two types of electrode reactions were found in the reduction of thiocyanates. 2-Thiocyanatocacetophenones [119] are reduced in a two-electron reduction to the acetophenone and thiocyanate ion. In most other thiocyanates the reduction results in the loss of a cyanide ion the half-wave potential is nearly independent of pH. Macroscale reductions at a mercury cathode yielded [149] the mercaptan. 

From 1966 through 1974 several notable studies were conducted on 5-containing compounds in tobacco smoke. In 1966, Philippe (2940) reported on the identification of thiocyanogen, thiocyanic acid, hydrogen sulfide, carbonyl sulfide, methylthionitrite, dimethyl sulfide, carbon disulfide, and thiophene in MSS. In that same year, ethyl mercaptan was qualitatively detected by Grob (1419). 

Triethoxysilylpropyl)-2-imidazoline. See N-[3-(Triethoxysilyl)-propyl] 4,5-dihydroimidazole 3-(Triethoxysilyl) propyl mercaptan. See3-Mercaptopropyltriethoxysilane 3-(Triethoxysilyl) propyl thiocyanate. See 3-Thiocyanatopropyltriethoxysilane (3-(Triethoxysilyl) propyl) urea. Seey-Ureidopropyltriethoxysilane N-(Triethoxysilylpropylj urea N-(Triethoxysilylpropyl) urea CAS 23779-32-0 EINECS/ELINCS 245-876-7 Synonyms (3-(Triethoxysilyl) propyl) urea Urea, (3-(triethoxysilyl) propyl)- Ureidopropyltriethoxysilane 3-Ureidopropyltriethoxysilane Empirical CioH24N204Si Formula H2NCONHCH2CH2CH2Si(OC2Hs)3 Properties Liq. m.w. 264.39 dens. 0.91 flash pt. IOC ref. index 1.386(20C)... 

Metam-sodium Methoxyethylmercury acetate Methylenebis (thiocyanate) Methyl mercaptan Methyl mercury (II) chloride Metiram Myclobutanil Myristalkonium chloride Naphthalene Naphthenic acid... 

Carbon tetrabromide m-Chloroaniline 4-Chloro-3-nitrobenzotrifiuoride 2-Chloropyridine Decyl bromide Dimethyl adipate Dimethyl sulfide p-Fluorophenol Hexyloxypropylamine Isodecyloxypropylamine N-lsodecyloxypropyl 1-1,3-diaminopropane Isotridecyloxypropylamine N-Isotridecyloxypropyl 1,3-diaminopropane N-Methylethanolamine Methyl mercaptan Neohexane 1-Nitropropane Sodium thiocyanate 3,3,3-Trifiuoropropene intermediate, agric. emulsifiers Benzene, mono-CI 0-13-alkyl derive., distillation residues C12-14alkylbenzene Dimethylaminopropylamine intermediate, agric. insecticides Triethyl phosphate intermediate, agric. pesticides Bromochloromethane... 

A soln. of p-nitrobenzyl mercaptan in methylene chloride added with stirring at 0° during 1.5 hrs. to a soln. of thiocyanogen prepared from Pb-thiocyanate and bromine in methylene chloride, stirring continued 15 min., anhydrous Na-acetate added in one portion, then N - (2 - tritylthioethyl) - 5 - phenyl - 4,5 - dithia-pentanamide added during 15 min., stirred 45 min. at 0 and 1 hr. at room temp. -> N- [5- (4-nitrophenyl) -3,4-dithiapentyl] -5-phenyl-4,5-dithiapentanamide. Y 50%. F. e. s. R. G. Hiskey and D. N. Harpp, Am. Soc. 87, 3965 (1965). 

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