2-Thioureido

The sulfur atom of the thiocarbonyl group is a good nucleophile, and reaction between benzyl bromide and l-(2-thiazolyl)thiourea yields the isothiouronium salt (496). The sulfur atom may also be engaged in a chelate, as exemplified by the Cu chelate of 2-thioureido-4-methylthiazole (491). These chelates with metal ions were thoroughly studied in acidic, neutral, and alkaline media for 66 metal ions in order to define their analytical use. They are formed in the molar ratio of 1 2 for metal II compounds (498). 

Bei der Umsetzung von 2-Amino-l,3,4-oxadiazol mit Aroylisothiocyanaten bzw. einer Mi-schung von Aroylchlorid und Ammoniumthiocyanat gelangt man nicht zu 1,3,4-Oxadiazo-lo[3,2-a]-l,3,5-triazinen671. Uber ein 2-(3-Acyl-2-thioureido)-l,3,4-oxadiazol erhalt man viel-mehr 6-Aroylimino-6H-[Pg.611]

Dioxo-6,7-dihydro-5H- bzw. 5,7-Dithiono-6,7-dihydro-5H- werden auch aus 2-Ureido- bzw. 2-Thioureido-1,3,4-oxadiazolen hergestellt672. 

Die Synthese von 2-Thioureido-l, 3-thiazolen777 aus 1,2-Dichlor-ethylisothiocyanat und Thiohamstoffen verlauft fiber 1,3,5-Thiadiazin-Intcrmediate. In ahnlicher Weise wird mit 1,3-Dimethyl-harnstoff ein 2-Ureido-l, 3-thiazol erhalten777. 

Beim Erhitzen iiber den Schmelzpunkt ergeben 2-(Ureido-methyl)- und 2-(Thioureido-methyl)-1,3-benzothiazole Imidazolo[5,l-b]-l,3-benzothiazole985 ... 

Tetrahydro- 186 2-(l,3-Thiazol-2-yl-amino)- 883 2-(2-Thienyl)- 890 2-[2-(2-Thienyl)-ethenyl]- 890, 995 2-(2-Thiono-hexahydropyrimido) 879 2-(2-Thiono-imidazolidino)- 880 2-(2-Thiono-imidazolidinoamino)- 878 2-Thioureido- 1005 6-Thioureido- 1003 2-(Thioureido-methyl)- 1015 2-Tribrommcthyl- 894 2-Tributylstannyl- 966 2,4,6-Trichlor- 874 2-Trichlormethyl- 901, 928... 

Dimethyl ester 4,4 -o-Phenylenebis(3-Thioallophanic) Acid 3336WP AI3-27905 Allophanic xid, 4,4 -o-phenyl-cnebis(3-thio-, dimethyl ester BAS 32500F Bis(3-(methoxycarbonyl)-2-thioureido)benzene 1,2-Bis(3-(methoxycarbonyl)-2-... 

Bis (3-(methoxycarbonyl)-2-thioureido) benzene o-Bis (3-methoxycarbonyl-2-thioureido) benzene. See Thiophanate-methyl... 

Dimethoxy-4,4 -biphenylene diisocyanate 3,3 -Dimethoxy-4,4 -biphenylene isocyanic acid ester. See Dianisidine diisocyanate 3,3 -((3,3 -Dimethoxy-4,4 -biphenylylene) bis (azo)) bis (5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid), tetrasodium salt. See Direct blue 15 3,3 -Dimethoxy-4,4 -biphenylylene diisocyanate. See Dianisidine diisocyanate 1,2-Di-(3-methoxycarbonyl-2-thioureido) benzene. See Thiophanate-methyl... 

CAS 23564-06-9 EINECS/ELINCS 245-741-2 Synonyms 1,2-Bis (3-ethoxycarbonylthioureido) benzene 1,2-Bis (3-ethoxycarbonyl-2-thioureido) benzene Diethyl [1,2-phenylenebis(iminiocarbonothioyl)]bis[carbam ate] Diethyl 4,4 -(o-phenylenebis (3-thioallophanate) Ethyl thiophanate (1,2-Phenylenebis (iminocarbonothioyl)) biscarbamic acid diethyl ester Thiophanate ethyl... 

CAS 23564-05-8 EINECS/ELINCS 245-740-7 Synonyms 1,2-Bis (methoxycarbonylthioureido) benzene 1,2-Bis (3-(methoxycarbonyl)-2-thioureido) benzene o-Bis (3-methoxycarbonyl-2-thioureido) benzene 1,2-Di-(3-methoxycarbonyl-2-thioureido) benzene Dimethyl [(1,2-phenylene) bis-(iminocarbonothioyl)] bis [carbamate] Dimethyl-4-4 -o-phenylenebis-3-thioallophanate Methyl thiophanate 4,4 -o-Phenylenebis (3-thioallophanic acid) dimethyl ester... 

Deoxy-2-thioureido-sugars, e.g. 53 (R=Bz or CO2EO could be synthesized by direct condensation of amino-sugars with benzoyl or ethoxycarbonyl isothiocyanate, whereas similar reactions with aryl or alkyl isothiocyanates led to alditol-1-yl substituted heterocycles, e.g. 54 by way of 53 (R=Ph or Me). These monocyclic products further cyclize in dilute acetic acid to give 55... 

Several peracetylated 2-deoxy-2-thioureido-P-D-glucopyranoses have been prepared by treating 2-deoxy-2-isothiocyanato-P-D-glucopyranose tetra-acetate with primary or secondary amines. Reaction of 2-amino-2-deoxy- D-glucopyranose tetra-acetate (184) with triphenylphosphine and carbon tetrachloride in dichloro-methane (the Appel reaction) gave the triphenylphosphonioamino salt (185), which yielded the phosphinimine (186) on treatment with triethylamine and the iV-methyl-aminotriphenylphosphonium iodide (187) on further treatment of (186) with... 

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