Ethionic acid

The compound formed is 0-hydroxy-ethanesulphonic acid it is usually called isethionic acid. Ethionic acid which is the acid sulphate of isethionic acid, HSO3.CH2.CH2.SO4H, is formed at the same time. Both acids are formed in small quantity in the preparation of ether from alcohol and sulphuric acid. 

Regnault found that ethylene combines with the vapour of sulphur trioxide to form a crystalline compound 2114(803)2 which he called acide althionique. Magnus (1839) obtained it by the action of sulphur trioxide on alcohol and called it carbyl sulphate. In contact with water it formed a dibasic acid, C2H4S2O7H2, ethionic acid, and on boiling with water a monobasic acid, C2H4SO4H2, isethionic acid. 

Benzimidazolethiones are cyclized in a mild reaction with either an arylazo-chloroacetyl chloride [2366] or with chloroacetic acid and a benzaldehyde [2454]. Imidazole-2-thione adds on to DM AD also without the need for external heating [2270] the epoxide of arylidenemalononitrile cyclizes 2-benzimidazol-ethione very efficiently to the thiazolone analogue [3933]. 

Tetraethyl-S,S -methylene bis(phosphorodithioate) (ethion, 63) can be considered as a double phorate molecule, and its action is similar to that of phorate. It is prepared by the interaction of diethyl phosphorodithioic acid with methylene... 

ETHION or ETHION 4 (563-12-2) Slowly oxidized in air. Incompatible with alkaline formulations, perchloric acid. Mixtures with magnesium may be explosive. Attacks natural rubber. 

This newer analytical approach could effectively replace any need for reductive LCEC in the future, since it appears that most compounds already studied by reductive means can now be done by oxidative HPLC-hv-EC methods as well. This has Included compounds such as 1) organic nltro derivatives, C-nltro, 0-nitro, N-nitro, etc. 2) M-nltroso compounds, such as N-nltrosamlnes, N-nltroso amino acids, etc. 3) organothlophosphates, such as malathlon, parathion, ethion, etc. 4) aromatic esters and amides, such as benzamlde, vitamin B, alkyl benzoates, etc. 5) beta-lactams, such as penicillins and cephalosporins 6) mycotoxlns, such as vomltoxln or deoxynlvalenol ... 

Magnus discovered ethionic and isethionic acids by the action of sulphur trioxide on alcohol or ether and dissolving the products in water. In 1833 he... 

Hydroxy-3-(3-oxo-l-pheitylbutyl)-2/f-l-benzopyian-2-one, see Warfarin 4-Hydroxy-3-(l-pheityl-3-oxobutyl)couniarin, see Warfarin 6-Hydroxy-2/f-pyridazin-3-one, see Maleie hydrazide 6-Hydroxy-3(2/f)-pyridazinone, see Maleie hydrazide l-Hydroxy-2,2,2-trichloroethylphosphonie acid dimethyl ester, see Trichlorfon Hylemox, see Ethion... 

Phosphorodithioic acid 5 -(2-chloro-l-phthalimidoethyl) 0,0-diethyl ester, see Dialifos Phosphorodithioic acid 0,0-diethyl ester, S. S -diester with methanedithiol, see Ethion Phosphorodithioic acid 0,0-diethyl ester -((ethylthiolmethyl) ester, see Phoiate Phosphorodithioic acid 5 -((l,3-dihydro-l,3-dioxo-2/f-isoindol-2-yl)methyl) 0,0-dimethyl ester, see Phosmet... 

Atrazine, simazine, 24D, silvex, 2,4,5 T Thiocarbamic acid Diuron (3-(3,4 dichlorophenyl 1 1 dimethyl urea Malathion, dimethoate, ethion... 

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