Methyl 4- dithio-carbamate

Perfluoroalkylamines can be prepared from perfluoroalkanethioamides67 and methyl dithio-carbamates.6B-6t)... 

Me = methyl Et = ethyl Ph = phenyl dtc = dithio-carbamate S2C=NR BTMG = iV-f-butyl-iV. Ai -tetra-methylguanidine Mes = mesityl(2,4,6-Me3C6H2) DMSO = dimethyl sulfoxide. 

Mercapto-4-methyl-5-thiazolylmethyl-ketone, from ammonium dithio-carbamate and 3-chloro-2,4 pentane-dione, 264... 

At extremely low concentration, silver can be chelated with ammonium pyrrolidine dithio-carbamate, extracted into methyl isobutyl ketone, aspirated into an air-acetylene flame, and measured by AAS. This procedure concentrates the sample, thus extending the detection limits. 

Secondary Amines. Treatment of secondary amines with base and CS2 leads to the corresponding dithiocarbamates. Dithio-carbamates of functionalized secondary amines form heterocyclic compounds. For example, monoalkylaminobutynes (9) react readily with CS2 to give 4-methyl-3-aIkyl-5-methylenethiazoli-dine-2-thiones (10) (eq 7). ... 

Other additives compatibiKzers (a-methyl styrene), ester of resins (polyindene, coumarone-indene, pentaerythritol ester of hydrogenated rosin) stabilizers (zinc dibutyl dithio carbamate)... 

Carbon disulfide is the dithio derivative of C02. It is only a weak electrophile. Actually, it is so unreactive that in many reactions it can be used as a solvent. Consequently, only good nucleophiles can add to the C—S double bond of carbon disulfide. For example, alkali metal alkoxides add to carbon disulfide forming alkali metal xan-thates A (Figure 7.4). If one were to protonate this compound this would provide compound B, which is a derivative of free dithiocarbonic acid. It is unstable in the condensed phase in pure form, just as free carbonic acid and the unsubstituted carbamic acid (Formula B in Figure 7.3) are unstable. Compound B would therefore decompose spontaneously into ROH and CS2. Stable derivatives of alkali metal xanthates A are their esters C. They are referred to as xanthic add esters or xanthates. They are obtained by an alkylation (almost always by a methylation) of the alkali metal xanthates A. You have already learned about synthesis applications of xanthic acid esters in Figures 1.32, 4.13, and 4.14. 

CARBAMIC ACID, (((((l,4-DITHIAN-2-YLIDENEAMINO)OXY)CARBONYL)METHYLAMINO )THIO)METHYL-,ETHYL ESTER see MLLIOO CARBAMC ACID, ESTER WITH SALICYLALDEHYDE DIMETHYL ACETAL see SAGIOO CARBAMIC ACID, ETHYLENEBIS(DITHIO)-, MANGANESE SALT see MAS500 CARBAMIC ACID, ETHYL ESTER see UVAOOO CARBAMIC ACID, ((4-... 

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