Tert-Butyl methyl sulfide

The protonated sulfides are less susceptible to cleavage than the corresponding protonated ethers and also more stable than the protonated thiols.149 Protonated tert-butyl methyl ether is completely cleaved to tot-butyl cation and protonated methanol even at 70°C. On the other hand, protonated tert-butyl methyl sulfide 60 is stable even at —60°C. When the temperature is increased to — 15°C, protonated fert-butyl methyl sulfide very slowly cleaves to tert- butyl cation and protonated methyl thiol149 [Eq. (4.39)]. 

CHLORO-2-METHYLBUTANE PENTANE 2-METHYLBUTANE (ISOPENTANE) 2,2-DIMETHYL-PROPANE METHYL-TERT-BUTYL-ETHER PENTYL-ALCOHOL TERT-PENTYL-ALCOHOL BUTYL-METHYL-SULFIDE ETHYL-PROPYL-SULFIDE 2-METHYL-2-BUTANETHIOL... 

Dimethyl sulfide Ethyl methyl sulfide tert-Butyl cyclopentyl sulfide FIGURE 6.56 Some thioethers (sulfides) and disulfides. 

HEPTANOL 5-HETHYL-l-HEXANOL ISOPROPYL-TERT-BUTYL-ETHER n-HEPTYL MERCAPTAN BUTYL-PROPYL-SULFIDE ETHYL-PENTYL-SULFIDE HEXYL-METHYL-SULFIDE... 

J-tert-Butyl-4-hydroxy-5-methylphenyl sulfide o-Cresol, 4,4 -thiobis[6-tert-butyl- (8), Phenyl, 4,4 -thiobis[2-(1,1-dimethylethyl)-6-methyl- (9),... 

The submitters used N-chlorosuccinimidc, 4-tert-butyl-cyclohexanol, methyl sulfide, and triethylamine, available from Aldrich Chemical Company, Inc., without further purification. 

Brom-4,5-dimethyl- -2-sulfid E2, 671 2-Brom-4,5-diphenyl- -2-sulfid E2, 671 2-Brom-4-methyl- E2, 183 2-tert.-Butyl-2,2-difhior-4,4,5,S-tetrakis-[tri-fluormethyl]- E2, 854... 

Alkoxy- l-alkenyl)-5-(thiazanthren- 10-yl-methyl)- -2-oxid E2, 389 2-Alkyl(Aryl)-4-methylen- -2-sulfide E2, 455 2-tert.-Butyl- E2, 209 2-Chlor- E2, 526, 553, 637 4-lmino-2,5,5-trimethyl- -2-sulfid E2, 456 2-Methoxy- E2,184, 596 2-Methoxy- -2-oxid E2, 596 2-(4-Methoxy-phenyl)-4-methyl- -2-sulfid Xll/l, 591... 

Acetyl-2-chlor-2,3-dihydro- E2, 680 3-Acctyl-2-chlor-2,3-dihydro- -2-sulfid E2, 680 5-tert.-Butyl-2,2-diphenyl-2-fluor- 7-methyl-2,3-di hydro- E2, 236... 

SYNS BIS(3-tert-BU1TL-4-HYDROXY-6-METHYL-PHENYL) SULFIDE BIS(4-HYDROXY-5-tert-BUTyL-2-METHYLPHENYL) sulfide DISPERSE MB-61 SANTONOX SANTOVC HITE CRYSTALS THIOALKOFEN BM 4 4,4 -THIOBIS(2-tert-BUTYL-5-METHYLPHENOL) 4,4 -THIOBIS(6-tert-BUTYL-3-METHYLPHENOL) 4,4 -THIOBIS(3-METHYL-6-tert-BUTYLPHENOL) l,l -THIOBIS(2-METHYL-4-HYDRO-XY-5-tert-BUTYLBENZENE) USAFB-15 YOSHINOX S... 

C10H22S methyl nonyl sulfide 59973-07-8 238.16 25.786 2 22402 Cl1HI60 2-tert-butyl-5-methylphenol 88-60-8 319.65 22.420 2... 

The original Sharpless reagent, a mixture of tetraisopropyl orthotitan-ate, (i ,/ )-diethyl tartrate, and tert-butyl hydroperoxide in the ratio 1 1 2 in dry dichloromethane or 1,2-dichloroethane [1025, is modified by adding 1 mol of water 224, 1029]. Such a reagent gives higher enantiomeric excesses. Of many sulfide oxidations that have been carried out, the conversion of methyl p-tolyl sulfide into the sulfoxide is shown in equation 565. 

Hydroboration of divinyldimethylsilane (123) with borane-methyl sulfide complex (BMS), followed by methanolysis affords a 7 1 ratio of the silaborolane (124) and silaborinane (125) in 47% yield (Scheme 13) <84JOC2565>. Upon treatment with tert-butyllithium, the corresponding tert-butyl boracycles (126) and (127), respectively, were obtained in 60% yield. 

Methyl-2-propanol 2-Methyl propene Methyl propionate Methylpropyl ether Methylpropyl sulfide Methylsilane a-Methyl styrene Methyl tert-butyl ether Methyl vinyl ether Naphthalene Neon... 

In a practical sense the hydrocarbon monomers that work best in anionic systems are styrene, a-methylstyrene, p-(tert-butyl)styrene, butadiene, isoprene, 2,3-dimethyIbutadiene, piperylene, stilbene, and 1,1-diphenylethylene. The latter two monomers give rise to alternating copolymers with other dienes but do not homopolymerize. Among the polar monomers (C) that can be polymerized are such monomers as 2-vinyIpyridine, pivalolactone, methacrylonitrile, methyl-methacrylate, ethylene oxide (not with Li-counterion), ethylene sulfide, and propylene sulfide. However, polymerization of many of these polar monomers suffers from side reactions and complicating termination or transfer reactions not present in the... 

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