Di-t-butyl sulfide

Diisobutyl sulfide Di-t-butyl sulfide t-Butyl isobutyl sulfide isoButyl mercaptan isoButene Hydrogen sulfide Non-volatile residue... 

Another kind of evidence for the involvement of ion radicals in photo-oxidation ccmies from the observation of cleavage of certain sulfides (41) with formation of unoxidized disulfides. Unlike the benzyl alkyl sulfides (40). di-t-butyl sulfide gives on oxidation with several photosensitizers, in addition to the sulfoxide and sulfone, amounts of di-t-butyl disulfide varying from traces with rose bengal or methylene blue in methanol to 97 and 100% in acetone with rose bengal free and bound on polymer beads, respectively. The yield of the disulfide may be a measure of the relative rate at which the cation radical 1 dissociated to the t-butyl cation and the t-butylthiyl radical in the various media ... 

Neither was disulfide produced with sensitizer in the absence of oxygen. In parallel irradiations of di-t-butyl sulfide, one under oxygen and the other under argon, no cleavage or any other reaction is seen in the experiment without oxygen. These results show that oxygen plays an essential part in... 

Di-t-butyl sulfide could be converted to disulfide in two hours at room temperature by trls-(p-bromophenyl)-aminium fluoborate in a stream of oxygen, but neither tetrahydrothiophene nor diphenyl sulfide underwent cleavage under these conditions. 

Prepare calibration standards by the careful weight dilution of the certified di-/t-butyl sulfide with white oil. Exact standards of approximately the sulfur concentrations listed in Table 1 are recommended. 

Compound IV in refluxing toluene in the presence of pyridine or P(S)C13 gave a cyclic product, 5,7-di-t-butyl-l-chloro-3,3-di-methyl-l-phosphaindan (VI, 64 %) or its 1-sulfide (VII, 68 %) re-... 

The reduction of sulfoxides by acetyl chloride is a general reaction and yields are generally high. However, the reduction of di-/t-butyl sulfoxide with acetyl chloride gives di-n-butyl sulfide in only 70% yield. 

AMINO GROUP Boron trifluoride ether-ale. l-r-Bulyloxycarbonyltriazole-1,2,4, Di-t-butyl dicarbonate. 4-Dimethylamino-1-t-butyloxycarbonyl pyridinium chloride. CARBONYL GROUP Ceric ammonium nitrate. 1,2-Dihydroxy-3-bromopropane. Sodium N-chloro-p-toluenesulfonamide. Thallium(lll) nitrate. Trichloroethanol. Trimcthylsilyl cyanide. Chloromethyl methyl sulfide. N,N -Diisopropylhydra-zinc. Trichloroethanol. 

Figure 11-4. Load-carrying action of organosulfides in the four-ball test. "Extreme-pressure" procedure 60 seconds at 1500 rpm. Additives furnished 1.19% sulfur to the lubricant, a Base oil. 1 Di-n-butyl sulfide. 2 Diphenyl disulfide. 3 Di-n-butyl disulfide. 4 Dibenzyl sulfide. 5 Di-t-butyl disulfide. 6 Dibenzyl disulfide. 7 Diallyl disulfide. From data by E. S. Forbes [32].

A mixture of di-n-butyl sulfide, 70%-perchloric acid, and benzyl alcohol heated 4 hrs. at 70-80 benzyldi-(n-butyl) sulfonium perchlorate. Y 83.5%.—The non-nucleophilic nature of perchlorate ion as compared to halide ion makes the process irreversible and thus avoids alkyl interchange. F. e., also with azeotropic removal of water, s. T. W. Milligan and B. G. Minor, J. Org. Ghem. 28, 235 (1963). 

A relatively unknown class of noncarbon cumulenes are the highly colored thionitroso 5-sulfides, RN=S=S. They are also 1,3-dipolar species, which undergo [3+2] cycloaddition reactions. Huisgen and Peng have studied the reaction of 2-methyM,6-di-t-butyl-phenylthionitroso 5-sulfide with cyclooctene and obtained the [3+2] cycloadduct in 50 % yield. In a similar manner, reaction with cyclooctadiene afforded the mono cycloadduct in 83 % yield. 

Adipic acid, 2441 1,4-Benzoquinone, 2214 t 1,3-Butadiene, 1480 Cinnamaldehyde, 3134 Copper iron(ll) sulfide, 4269 Dibromomethylborane, 0426 f Di-/ert-butyl peroxide, 3074 Dichlorine oxide, Hydrocarbons, 4095... 

REDUCTION, REAGENTS Aluminum amalgam. Borane-Dimethyl sulfide. Borane-Tetrahydrofurane. t-Butylaminoborane. /-Butyl-9-borabicyclo[3.3.1]nonane. Cobalt boride— f-Butylamineborane. Diisobutylaluminum hydride. Diisopropylamine-Borane. Diphenylamine-Borane. Diphenyltin dihydride. NB-Enantrane. NB-Enantride. Erbium chloride. Hydrazine, lodotrimethylsilane. Lithium-Ammonia. Lithium aluminum hydride. Lithium borohydride. Lithium bronze. Lithium n-butylborohydride. Lithium 9,9-di-n-butyl-9-borabicyclo[3.3.11nonate. Lithium diisobutyl-f-butylaluminum hydride. Lithium tris[(3-ethyl-3pentylK>xy)aluminum hydride. Nickel-Graphite. Potassium tri-sec-butylborohydride. Samarium(II) iodide. Sodium-Ammonia. Sodium bis(2-mcthoxyethoxy)aluminum hydride. 

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