ChemInform Abstract: THE REACTIVE BEHAVIOR OF 2-PYRIDYL SUBSTITUTED CARBODIIMIDES- PYRIDO(1,2-A)TRIAZINES FROM N-2-PYRIDYL IMIDODIPHENYLTHIOPHOSPHINATES AND CARBON DISULFIDE AS WELL AS PHENYL ISOTHIOCYANATE

1978 ◽  
Vol 9 (1) ◽  
Author(s):  
J. BOEDEKER ◽  
P. KOECKRITZ ◽  
R. KRAFT
1985 ◽  
Vol 24 (6) ◽  
pp. 932-939 ◽  
Author(s):  
Claudio Bianchini ◽  
Carlo A. Ghilardi ◽  
Andrea Meli ◽  
Stefano Midollini ◽  
Annabella Orlandini

2006 ◽  
Vol 60 (1) ◽  
Author(s):  
A. Aly ◽  
R. El-Sayed

AbstractThe aminothiadiazole (II) on treatment with aromatic aldehydes yielded Schiff bases, which cyclized to thiazolidinone derivatives by reaction with thioglycolic acid. Reaction of II with phenyl isocyanate and phenyl isothiocyanate afforded the carbamide and carbothiamide derivatives, respectively, which on reaction with malonic acid in acetyl chloride gave barbituric and thiobarbituric acid derivatives. However, reaction of carbon disulfide and methyl iodide with II gave dithiocarbamidate derivative which on treatment with ethylenediamine or o-phenylenediamine gave the condensed N-imidazolylthiadiazolylamine derivatives.


ChemInform ◽  
1992 ◽  
Vol 23 (51) ◽  
pp. no-no
Author(s):  
W. DOELLING ◽  
K. KISCHKIES ◽  
D. STROEHL ◽  
F. HEINEMANN ◽  
H. HARTUNG

1995 ◽  
Vol 50 (5) ◽  
pp. 837-843 ◽  
Author(s):  
Wolfgang Dölling ◽  
Helmut Hartungb ◽  
Matthias Biedermann

Abstract 2-Methyl-1 H-benzimidazole 1 reacts in the presence of two equivalents of sodium hydride in dry DMSO with carbon disulfide to methyl 2-methylbenzimidazole-1-dithiocarboxylate 3 using methyl iodide as alkylating agent, whereas using 1,2-dibromoethane 1,1′-carbonothioyl bis(2-methyl-1 H-benzimidazole) 5 is formed. Compound 1 reacts with phenyl isothiocyanate in the presence of one equivalent of sodium hydride in dry DMF after alkylation to 2-methyl-1-( alkylthio-phenylimino)-1 H-benzimidazoles 6a, 6b. Reaction products 5 and 6b have been identified and structurally characterized by X-ray analysis.


1982 ◽  
Vol 37 (4) ◽  
pp. 473-485 ◽  
Author(s):  
Klaus Burger ◽  
Herbert Goth ◽  
Ewald Daltrozzo

2,2,2-Trimethoxy-3,3-bis(trifluoromethyl)-2,2-dihydro-1,4,2-oxazaphosphol-4-enes on thermolysis undergo a 1,3-dipolar cycloreversion reaction with formation of bis(trifluoromethyl) substituted nitrile ylides and trimethyl phosphate. The nitrile ylides are trapped by N-sulfinyl aniline, phenyl isocyanate, phenyl isothiocyanate, diphenyl ketene, and carbon disulfide. Site selectivity and regiochemistry of the [3 + 2]cycloaddition reactions are described. The results are compared with those obtained from [3 + 2]cycloaddition reactions of nitrile imines, nitrile oxides, alkyl, and aryl substituted nitrile ylides with heterocumulenes.


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