Divinyl sulfoxide

Winterfeldt has shown that the reaction of dimethyl sulfoxide with DMAD gives tetramethyl furantetracarboxylate (345), and it was suggested that this reaction may proceed through the intermediates 342, 343, and.344 (Scheme 52). The reaction of /-butylsulfenic acid with methyl propiolate, however, gives /3v -bis(/ra/is-carbomethoxy)divinyl sulfoxide (348) (Scheme 53). The penicillin S-oxide (349) is known to react with DMAD to give the adduct 352, and this reaction has been assumed to proceed through the sulfenic acid intermediate 350 (Scheme 54). ... 

The cyclic adduct 109 is obtained from 105 and divinyl sulfoxide (equation 143)368,369. 

In the tenth official proficiency test, five laboratories did not find divinyl sulfoxide (CAS 1115-15-7) in the decontamination solution sample Dl The chemical should have been recovered from the organic extract of the sample. Concentration of the extract, if undertaken, could have helped two laboratories identify this chemical. In one laboratory, false sample preparation was the probable reason for missing it. The laboratory extracted the sample with dichloromethane, evaporated the extract to dryness, dissolved the evaporation residue, and finally sily-lated it. Usually, organic solvents should not be evaporated to dryness in the recovery of a volatile chemical, and this might be the reason for missing the chemical. Perhaps for this same reason the laboratory missed ethyl 2-methoxyethyl methylphospho-nate (CAS 170082-62-9) in the Dl sample. 

Vinyl sulfoxide sulfone Divinyl sulfoxide 1,1-Sulfinylbis ethene c4h6os 1115-15-7 Dehydrochlorination of mustard... 

Vinyl chloride reacts with sulfides, thiols, alcohols, and oximes in basic media. Reaction with hydrated sodium sulfide [1313-82-2] in a mixture of dimethyl sulfoxide [67-68-5] (DMSO) and potassium hydroxide [1310-58-3], KOH, yields divinyl sulfide [627-51-0] and sulfur-containing heterocycles (27). Various vinyl sulfides can be obtained by reacting vinyl chloride with thiols in the presence of base (28). Vinyl ethers are produced in similar fashion, from the reaction of vinyl chloride with alcohols in the presence of a strong base (29,30). A variety of pyrroles and indoles have also been prepared by reacting vinyl chloride with different ketoximes or oximes in a mixture of DMSO and KOH (31). 

The dioxime of cyclohexane-1,4-dione reacts with acetylene in an autoclave in the presence of KOH/dimethyl sulfoxide (DMSO) (Trofimov reaction) to give l,5-divinyl-4,8-dihydropyrrolo[2,32f]indole by sequential [1,3]- and [3,3]-rearrangements in poor yield (Equation 91) <2004TL3789>. 

Pentadienone (divinyl ketone) was epoxidized55 by means of hydrogen peroxide in alkaline solution, to give a mixture of DL- and me.so-l,2 4,5-dianhydro-3-pentanones in the ratio of 13 7. Reduction of the ketone group in the DL-diepoxide with sodium horohvdride, followed by alkaline hydrolysis in dimethyl sulfoxide, was fully stereo-specific, and afforded DL-arabinitol. The same reaction-sequence performed on the meso-diepoxide led to a mixture of ribitol and xylitol. 

Divinyl DMDT DMF DMS DMSO DNT DOA 1-Dodecanethiol Dodecanol Dodecanol Dodecanol Peroxide Dodecene 1-Dodecene Dodecene (Non-Linear) Dodecene (Non-Linear) Dodecyl Alcohol Dodecylbenzene Butadiene, Inhibited Methoxychlor Dimethylfbrmamide Dimethyl Sulfide Dimethyl Sulfoxide 2,4-Dinitrotoluene Dioctyl Adipate Lauryl Mercaptan Linear Alcohols (12-15 Carbons) Dodecanol Lauroyl Peroxide Dodecene 1-Dodecene Propylene Tetramer Dodecene Dodecanol Dodecylbenzene... 

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